Implements the Angular Router service , which enables navigation from one view to the next as users perform application tasks.
Defines the Route object that maps a URL path to a component, and the RouterOutlet directive
that you use to place a routed view in a template, as well as a complete API for configuring, querying, and controlling the router state.
Import RouterModule to use the Router service in your app.
For more usage information, see the Routing and Navigation guide.