add eslint to dependency

Author: JeckyTian

package.json

@@ -27,6 +27,7 @@
  "acorn": "^7.1.0",
  "axios-mock-adapter": "^1.16.0",
  "babel-eslint": "^10.0.1",
+ "eslint": "^4.12.1",
  "babelify": "^10.0.0",
  "del": "^2.0.2",
  "envify": "^3.4.0",