message: Adds polling to vagrant FE start command
diff: "ng": "ng",
  "start": "ng serve --proxy-config local-proxy.conf.json",
  "start-docker-dev": "ng serve --host 0.0.0.0 --proxy-config docker-proxy.conf.json",
  - "start-vagrant-dev": "ng serve --host 0.0.0.0 --proxy-config local-proxy.conf.json",
  + "start-vagrant-dev": "ng serve --host 0.0.0.0 --proxy-config local-proxy.conf.json --poll 500",
  "build": "ng build --prod",
  "test": "ng test",
  "lint": "ng lint",
  