* fix[sharding-ui-frontend]:solving npm run build error reporting problem

* refactor[sharding-ui-frontend]:delete .gitkeep

* refactor[sharding-ui-frontend]:replace Chinese

* refactor[sharding-ui-frontend]:rewrite logo.spec.js file

* refactor[sharding-ui-frontend]:delete redundant code and unify code format

* refactor[sharding-ui-frontend]:delete element ui theme css style and add custom theme color css style

* refactor[sharding-ui-frontend]:move karma.conf.js file,modify unit commands,delete favicon.ico file

* refactor[sharding-ui-frontend]:delete iconfont font

* refactor[sharding-ui-frontend]:move favicon.png file

* refactor[sharding-ui-frontend]:pom file add npm run unit

* refactor[sharding-ui-frontend]:modify karma.conf.js, turn off auto-start browser

* refactor[sharding-ui-frontend]:pom.xml file add npm version

* refactor[sharding-ui-frontend]:add missing terminator

* refactor[sharding-ui-frontend]:add puppeteer

* feature[incubator-shardingsphere]:delete. gitkeep from pom.xml