v2 Enable local development (#52)

- Create local dev environment
- Add gas-client and google-apps-script-webpack-dev-server packages for development
- Add dev/ wrapper app
- Update webpack config to support development environment
- Redesigned READMEs
- Support typescript
- Update npm scripts
- Organize and update .gitignore file
- Add .vscode settings for clasp files
- Remove tracking for files in dist/

.eslintrc.json

@@ -1,3 +1,14 @@
 {
-  "parser": "babel-eslint"
+  "root": true,
+  "parser": "babel-eslint",
+  "extends": ["airbnb-base", "plugin:prettier/recommended"],
+  "plugins": ["prettier"],
+  "rules": {
+    "prettier/prettier": "error",
+    "camelcase": "warn",
+    "import/prefer-default-export": "warn",
+    "import/no-extraneous-dependencies": "warn",
+    "prefer-object-spread": "warn",
+    "spaced-comment":"off"
+  }
 }