add shared eslint & prettier (#102)

* add shared eslint & prettier

* leave sdk specific rules

* disable errors for tests files

* use generic eslint rules

.eslintrc

@@ -1,21 +1,3 @@
 {
-  "root": true,
-  "parser": "@typescript-eslint/parser",
-  "plugins": ["@typescript-eslint", "prettier"],
-  "parserOptions": {
-    "project": ["tsconfig.json", "tsconfig.test.json"]
-  },
-  "extends": [
-    "eslint:recommended",
-    "plugin:@typescript-eslint/eslint-recommended",
-    "plugin:@typescript-eslint/recommended",
-    "prettier"
-  ],
-  "rules": {
-    "no-console": 1, // Means warning
-    "prettier/prettier": 2, // Means error
-    "@typescript-eslint/no-floating-promises": ["error"],
-    "@typescript-eslint/no-non-null-assertion": "off"
-  },
-  "ignorePatterns": ["dist", "node_modules"]
-}
+  "extends": ["@iden3/eslint-config"]
+}

.prettierrc

@@ -1,6 +1 @@
-{
-  "semi": true,
-  "trailingComma": "none",
-  "singleQuote": true,
-  "printWidth": 100
-}
+"@iden3/eslint-config/prettier"

package.json

@@ -28,7 +28,7 @@
     "doc:watch:website": "ts-node ./scripts/doc-watch.ts",
     "tsc:declaration:watch": "tsc --watch --module commonjs --emitDeclarationOnly",
     "test": "env TS_NODE_COMPILER_OPTIONS='{\"strict\": false}' mocha",
-    "lint": "eslint --fix --ext .js,.ts src/** tests/**",
+    "lint": "eslint --fix --ext .ts src/** tests/**",
     "format": "prettier --write \"src/**/*.ts\" \"tests/**/*.ts\"",
     "deps:check": "madge --circular --extensions ts ./"
   },
@@ -43,6 +43,7 @@
   },
   "homepage": "https://github.com/0xPolygonID/js-sdk#readme",
   "devDependencies": {
+    "@iden3/eslint-config": "https://github.com/iden3/eslint-config",
     "@esbuild-plugins/node-globals-polyfill": "^0.1.1",
     "@esbuild-plugins/node-modules-polyfill": "^0.1.4",
     "@gr2m/fetch-mock": "^9.11.0-pull-request-644.1",