rewrite axios && mock data

src/api/article.js

src/api/article_table.js

src/api/login.js

src/api/qiniu.js

src/api/remoteSearch.js

src/mock/article.js

src/mock/article_table.js

src/mock/index.js

src/mock/login.js

src/mock/remoteSearch.js

src/utils/fetch.js

src/utils/index.js

src/views/example/dragTable.vue

src/views/example/form1.vue

src/views/example/inlineEditTable.vue

src/views/example/table.vue

src/views/permission/index.vue