Angular 5 Support

[manjot-cams]

• Changed name to be angular5-web-worker
• Bumped version to 0.0.7
• Updated project dependencies so now when you install this plugin, you no longer see the following warning:
  
• Fixed all tslint errors
• Updated tsconfig.json to latest @angular/cli format
• Added index.ts to export web-worker.service for easy import from project like so: import { WebWorkerService } from 'angular5-web-worker';