Configure eslint and prettier

Author: danielcaldas

.eslintignore

@@ -0,0 +1,3 @@
+/docs/**
+/lib/**
+/node_modules/**

.eslintrc.js

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+module.exports = {
+    extends: ["eslint:recommended", "plugin:jest/recommended"],
+    globals: {
+        document: true,
+        window: true,
+        __dirname: true,
+    },
+    parser: "babel-eslint",
+    parserOptions: {
+        ecmaVersion: 6,
+        ecmaFeatures: {
+            jsx: true,
+        },
+    },
+    plugins: ["standard", "react", "jest", "babel"],
+    env: {
+        browser: true,
+    },
+    rules: {
+        "react/jsx-uses-react": "error",
+        "react/jsx-uses-vars": "error",
+        camelcase: "error",
+        "keyword-spacing": "error",
+        "max-len": ["error", 120, 4, { ignoreComments: true }],
+        "max-lines": ["error", { max: 450, skipComments: true }],
+        "no-useless-constructor": "error",
+        quotes: ["error", "double"],
+    },
+};