Add start-prod and build-prod to package.json

Author: darkbasic

package.json

@@ -7,7 +7,9 @@
     "lint": "ng lint",
     "pree2e": "webdriver-manager update --standalone false --gecko false --quiet",
     "build": "webpack",
+    "build-prod": "webpack --config webpack.config.js.prod",
     "start": "webpack-dev-server --port=4200",
+    "start-prod": "webpack-dev-server --port=4200 --config webpack.config.js.prod",
     "test": "karma start ./karma.conf.js",
     "e2e": "protractor ./protractor.conf.js"
   },