diff --git a/package-lock.json b/package-lock.json
index c79fa7d996f141c69d7fa24c75c73d29c05be7db..f68059e85ebb84ce4dc3d73caa158243c02d9736 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,31 +4,255 @@
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   "requires": true,
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+      "resolved": "https://registry.npmjs.org/@ethersproject/abi/-/abi-5.0.7.tgz",
+      "integrity": "sha512-Cqktk+hSIckwP/W8O47Eef60VwmoSC/L3lY0+dIBhQPCNn9E4V7rwmm2aFrNRRDJfFlGuZ1khkQUOc3oBX+niw==",
       "requires": {
-        "regenerator-runtime": "^0.13.2"
+        "@ethersproject/address": "^5.0.4",
+        "@ethersproject/bignumber": "^5.0.7",
+        "@ethersproject/bytes": "^5.0.4",
+        "@ethersproject/constants": "^5.0.4",
+        "@ethersproject/hash": "^5.0.4",
+        "@ethersproject/keccak256": "^5.0.3",
+        "@ethersproject/logger": "^5.0.5",
+        "@ethersproject/properties": "^5.0.3",
+        "@ethersproject/strings": "^5.0.4"
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+    },
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+      "resolved": "https://registry.npmjs.org/@ethersproject/abstract-provider/-/abstract-provider-5.1.0.tgz",
+      "integrity": "sha512-8dJUnT8VNvPwWhYIau4dwp7qe1g+KgdRm4XTWvjkI9gAT2zZa90WF5ApdZ3vl1r6NDmnn6vUVvyphClRZRteTQ==",
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+        "@ethersproject/bytes": "^5.1.0",
+        "@ethersproject/logger": "^5.1.0",
+        "@ethersproject/networks": "^5.1.0",
+        "@ethersproject/properties": "^5.1.0",
+        "@ethersproject/transactions": "^5.1.0",
+        "@ethersproject/web": "^5.1.0"
+      }
+    },
+    "@ethersproject/abstract-signer": {
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+      "resolved": "https://registry.npmjs.org/@ethersproject/abstract-signer/-/abstract-signer-5.1.0.tgz",
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+      "requires": {
+        "@ethersproject/abstract-provider": "^5.1.0",
+        "@ethersproject/bignumber": "^5.1.0",
+        "@ethersproject/bytes": "^5.1.0",
+        "@ethersproject/logger": "^5.1.0",
+        "@ethersproject/properties": "^5.1.0"
+      }
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+      "resolved": "https://registry.npmjs.org/@ethersproject/address/-/address-5.1.0.tgz",
+      "integrity": "sha512-rfWQR12eHn2cpstCFS4RF7oGjfbkZb0oqep+BfrT+gWEGWG2IowJvIsacPOvzyS1jhNF4MQ4BS59B04Mbovteg==",
+      "requires": {
+        "@ethersproject/bignumber": "^5.1.0",
+        "@ethersproject/bytes": "^5.1.0",
+        "@ethersproject/keccak256": "^5.1.0",
+        "@ethersproject/logger": "^5.1.0",
+        "@ethersproject/rlp": "^5.1.0"
+      }
+    },
+    "@ethersproject/base64": {
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+      "resolved": "https://registry.npmjs.org/@ethersproject/base64/-/base64-5.1.0.tgz",
+      "integrity": "sha512-npD1bLvK4Bcxz+m4EMkx+F8Rd7CnqS9DYnhNu0/GlQBXhWjvfoAZzk5HJ0f1qeyp8d+A86PTuzLOGOXf4/CN8g==",
+      "requires": {
+        "@ethersproject/bytes": "^5.1.0"
+      }
+    },
+    "@ethersproject/bignumber": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/bignumber/-/bignumber-5.1.0.tgz",
+      "integrity": "sha512-wUvQlhTjPjFXIdLPOuTrFeQmSa6Wvls1bGXQNQWvB/SEn1NsTCE8PmumIEZxmOPjSHl1eV2uyHP5jBm5Cgj92Q==",
+      "requires": {
+        "@ethersproject/bytes": "^5.1.0",
+        "@ethersproject/logger": "^5.1.0",
+        "bn.js": "^4.4.0"
+      }
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+    "@ethersproject/bytes": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/bytes/-/bytes-5.1.0.tgz",
+      "integrity": "sha512-sGTxb+LVjFxJcJeUswAIK6ncgOrh3D8c192iEJd7mLr95V6du119rRfYT/b87WPkZ5I3gRBUYIYXtdgCWACe8g==",
+      "requires": {
+        "@ethersproject/logger": "^5.1.0"
+      }
+    },
+    "@ethersproject/constants": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/constants/-/constants-5.1.0.tgz",
+      "integrity": "sha512-0/SuHrxc8R8k+JiLmJymxHJbojUDWBQqO+b+XFdwaP0jGzqC09YDy/CAlSZB6qHsBifY8X3I89HcK/oMqxRdBw==",
+      "requires": {
+        "@ethersproject/bignumber": "^5.1.0"
+      }
+    },
+    "@ethersproject/hash": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/hash/-/hash-5.1.0.tgz",
+      "integrity": "sha512-fNwry20yLLPpnRRwm3fBL+2ksgO+KMadxM44WJmRIoTKzy4269+rbq9KFoe2LTqq2CXJM2CE70beGaNrpuqflQ==",
+      "requires": {
+        "@ethersproject/abstract-signer": "^5.1.0",
+        "@ethersproject/address": "^5.1.0",
+        "@ethersproject/bignumber": "^5.1.0",
+        "@ethersproject/bytes": "^5.1.0",
+        "@ethersproject/keccak256": "^5.1.0",
+        "@ethersproject/logger": "^5.1.0",
+        "@ethersproject/properties": "^5.1.0",
+        "@ethersproject/strings": "^5.1.0"
+      }
+    },
+    "@ethersproject/keccak256": {
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+      "resolved": "https://registry.npmjs.org/@ethersproject/keccak256/-/keccak256-5.1.0.tgz",
+      "integrity": "sha512-vrTB1W6AEYoadww5c9UyVJ2YcSiyIUTNDRccZIgwTmFFoSHwBtcvG1hqy9RzJ1T0bMdATbM9Hfx2mJ6H0i7Hig==",
+      "requires": {
+        "@ethersproject/bytes": "^5.1.0",
+        "js-sha3": "0.5.7"
+      },
+      "dependencies": {
+        "js-sha3": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
+          "integrity": "sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc="
+        }
+      }
+    },
+    "@ethersproject/logger": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/logger/-/logger-5.1.0.tgz",
+      "integrity": "sha512-wtUaD1lBX10HBXjjKV9VHCBnTdUaKQnQ2XSET1ezglqLdPdllNOIlLfhyCRqXm5xwcjExVI5ETokOYfjPtaAlw=="
+    },
+    "@ethersproject/networks": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/networks/-/networks-5.1.0.tgz",
+      "integrity": "sha512-A/NIrIED/G/IgU1XUukOA3WcFRxn2I4O5GxsYGA5nFlIi+UZWdGojs85I1VXkR1gX9eFnDXzjE6OtbgZHjFhIA==",
+      "requires": {
+        "@ethersproject/logger": "^5.1.0"
+      }
+    },
+    "@ethersproject/properties": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/properties/-/properties-5.1.0.tgz",
+      "integrity": "sha512-519KKTwgmH42AQL3+GFV3SX6khYEfHsvI6v8HYejlkigSDuqttdgVygFTDsGlofNFchhDwuclrxQnD5B0YLNMg==",
+      "requires": {
+        "@ethersproject/logger": "^5.1.0"
+      }
+    },
+    "@ethersproject/rlp": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/rlp/-/rlp-5.1.0.tgz",
+      "integrity": "sha512-vDTyHIwNPrecy55gKGZ47eJZhBm8LLBxihzi5ou+zrSvYTpkSTWRcKUlXFDFQVwfWB+P5PGyERAdiDEI76clxw==",
+      "requires": {
+        "@ethersproject/bytes": "^5.1.0",
+        "@ethersproject/logger": "^5.1.0"
+      }
+    },
+    "@ethersproject/signing-key": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/signing-key/-/signing-key-5.1.0.tgz",
+      "integrity": "sha512-tE5LFlbmdObG8bY04NpuwPWSRPgEswfxweAI1sH7TbP0ml1elNfqcq7ii/3AvIN05i5U0Pkm3Tf8bramt8MmLw==",
+      "requires": {
+        "@ethersproject/bytes": "^5.1.0",
+        "@ethersproject/logger": "^5.1.0",
+        "@ethersproject/properties": "^5.1.0",
+        "bn.js": "^4.4.0",
+        "elliptic": "6.5.4"
+      }
+    },
+    "@ethersproject/strings": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/strings/-/strings-5.1.0.tgz",
+      "integrity": "sha512-perBZy0RrmmL0ejiFGUOlBVjMsUceqLut3OBP3zP96LhiJWWbS8u1NqQVgN4/Gyrbziuda66DxiQocXhsvx+Sw==",
+      "requires": {
+        "@ethersproject/bytes": "^5.1.0",
+        "@ethersproject/constants": "^5.1.0",
+        "@ethersproject/logger": "^5.1.0"
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+    "@ethersproject/transactions": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/transactions/-/transactions-5.1.0.tgz",
+      "integrity": "sha512-s10crRLZEA0Bgv6FGEl/AKkTw9f+RVUrlWDX1rHnD4ZncPFeiV2AJr4nT7QSUhxJdFPvjyKRDb3nEH27dIqcPQ==",
+      "requires": {
+        "@ethersproject/address": "^5.1.0",
+        "@ethersproject/bignumber": "^5.1.0",
+        "@ethersproject/bytes": "^5.1.0",
+        "@ethersproject/constants": "^5.1.0",
+        "@ethersproject/keccak256": "^5.1.0",
+        "@ethersproject/logger": "^5.1.0",
+        "@ethersproject/properties": "^5.1.0",
+        "@ethersproject/rlp": "^5.1.0",
+        "@ethersproject/signing-key": "^5.1.0"
+      }
+    },
+    "@ethersproject/web": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@ethersproject/web/-/web-5.1.0.tgz",
+      "integrity": "sha512-LTeluWgTq04+RNqAkVhpydPcRZK/kKxD2Vy7PYGrAD27ABO9kTqTBKwiOuzTyAHKUQHfnvZbXmxBXJAGViSDcA==",
+      "requires": {
+        "@ethersproject/base64": "^5.1.0",
+        "@ethersproject/bytes": "^5.1.0",
+        "@ethersproject/logger": "^5.1.0",
+        "@ethersproject/properties": "^5.1.0",
+        "@ethersproject/strings": "^5.1.0"
+      }
+    },
+    "@sindresorhus/is": {
+      "version": "0.14.0",
+      "resolved": "https://registry.npmjs.org/@sindresorhus/is/-/is-0.14.0.tgz",
+      "integrity": "sha512-9NET910DNaIPngYnLLPeg+Ogzqsi9uM4mSboU5y6p8S5DzMTVEsJZrawi+BoDNUVBa2DhJqQYUFvMDfgU062LQ=="
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+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@szmarczak/http-timer/-/http-timer-1.1.2.tgz",
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+      "requires": {
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     "@types/bn.js": {
-      "version": "4.11.5",
-      "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-4.11.5.tgz",
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-      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.14.7.tgz",
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+      "version": "12.20.7",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.20.7.tgz",
+      "integrity": "sha512-gWL8VUkg8VRaCAUgG9WmhefMqHmMblxe2rVpMF86nZY/+ZysU+BkAp+3cz03AixWDSSz0ks5WX59yAhv/cDwFA=="
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-      "resolved": "https://registry.npmjs.org/aes-js/-/aes-js-3.0.0.tgz",
-      "integrity": "sha1-4h3xCtbCBTKVvLuNq0Cwnb6ofk0="
+    "@types/pbkdf2": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@types/pbkdf2/-/pbkdf2-3.1.0.tgz",
+      "integrity": "sha512-Cf63Rv7jCQ0LaL8tNXmEyqTHuIJxRdlS5vMh1mj5voN4+QFhVZnlZruezqpWYDiJ8UTzhP0VmeLXCmBk66YrMQ==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
+    "@types/secp256k1": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/@types/secp256k1/-/secp256k1-4.0.1.tgz",
+      "integrity": "sha512-+ZjSA8ELlOp8SlKi0YLB2tz9d5iPNEmOBd+8Rz21wTMdaXQIa9b6TEnD6l5qKOCypE7FSyPyck12qZJxSDNoog==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
+    "accepts": {
+      "version": "1.3.7",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
+      "integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
+      "requires": {
+        "mime-types": "~2.1.24",
+        "negotiator": "0.6.2"
+      }
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@@ -46,6 +270,16 @@
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       "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU="
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+    "array-filter": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/array-filter/-/array-filter-1.0.0.tgz",
+      "integrity": "sha1-uveeYubvTCpMC4MSMtr/7CUfnYM="
+    },
+    "array-flatten": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+    },
     "asn1": {
       "version": "0.2.4",
       "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
@@ -54,6 +288,17 @@
         "safer-buffer": "~2.1.0"
       }
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+    "asn1.js": {
+      "version": "5.4.1",
+      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-5.4.1.tgz",
+      "integrity": "sha512-+I//4cYPccV8LdmBLiX8CYvf9Sp3vQsrqu2QNXRcrbiWvcx/UdlFiqUJJzxRQxgsZmvhXhn4cSKeSmoFjVdupA==",
+      "requires": {
+        "bn.js": "^4.0.0",
+        "inherits": "^2.0.1",
+        "minimalistic-assert": "^1.0.0",
+        "safer-buffer": "^2.1.0"
+      }
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       "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
@@ -64,11 +309,24 @@
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       "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
     },
+    "async-limiter": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
+      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
+    },
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
     },
+    "available-typed-arrays": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/available-typed-arrays/-/available-typed-arrays-1.0.2.tgz",
+      "integrity": "sha512-XWX3OX8Onv97LMk/ftVyBibpGwY5a8SmuxZPzeOxqmuEqUCOM9ZE+uIaD1VNJ5QnvU2UQusvmKbuM1FR8QWGfQ==",
+      "requires": {
+        "array-filter": "^1.0.0"
+      }
+    },
     "aws-sign2": {
       "version": "0.7.0",
       "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
@@ -79,6 +337,19 @@
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     },
+    "base-x": {
+      "version": "3.0.8",
+      "resolved": "https://registry.npmjs.org/base-x/-/base-x-3.0.8.tgz",
+      "integrity": "sha512-Rl/1AWP4J/zRrk54hhlxH4drNxPJXYUaKffODVI53/dAsV4t9fBxyxYKAVPU1XBHxYwOWP9h9H0hM2MVw4YfJA==",
+      "requires": {
+        "safe-buffer": "^5.0.1"
+      }
+    },
+    "base64-js": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
+      "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA=="
+    },
     "bcrypt-pbkdf": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
@@ -97,26 +368,44 @@
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-      "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
-      "integrity": "sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==",
-      "requires": {
-        "file-uri-to-path": "1.0.0"
-      }
+    "blakejs": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/blakejs/-/blakejs-1.1.0.tgz",
+      "integrity": "sha1-ad+S75U6qIylGjLfarHFShVfx6U="
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-    "bip66": {
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@@ -189,6 +641,39 @@
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@@ -224,6 +727,33 @@
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@@ -253,6 +783,11 @@
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@@ -1493,11 +2981,11 @@
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-      "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=",
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.3.tgz",
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+        "xhr-request": "^1.1.0"
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@@ -1508,25 +2996,25 @@
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-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
-      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
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       "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
+    },
+    "yallist": {
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+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
+      "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g=="
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 }