给webpack前端工程添加.eslintrc和.editorconfig #1
Description
1、增加.eslintrc文件，需要安装如下npm包：
"babel-eslint": "^8.2.3", "eslint": "^4.19.1", "eslint-config-standard": "^11.0.0", "eslint-loader": "^2.0.0", "eslint-plugin-html": "^4.0.3", "eslint-plugin-import": "^2.12.0", "eslint-plugin-node": "^6.0.1", "eslint-plugin-promise": "^3.7.0", "eslint-plugin-standard": "^3.1.0",2、增加.editorconfig文件，代码编辑器需要按照插件
