[labs/router] Make the current route field public

[zandaqo]

At the moment, the current route field is protected. Making it public would allow other components to check which route is currently active. A simple accessor akin to Routes#params would do.

A use case example: navigation panel highlighting the currently active tab depending on the active route.

[christophe-g]

Similar remark re current params

There might be scenario where you would like to access it. For instance, checking parameters from _parentRoutes in nested route scenario.

[zandaqo]

Similar remark re current params

There might be scenario where you would like to access it. For instance, checking parameters from _parentRoutes in nested route scenario.

There is a getter for params, Routes#params.

[christophe-g]

There is a getter for params, [Routes#params]

Ouups ; )

[abdonrd]

Any news here? We also need the current route.

[cedx]

Definitely needed 😅

[zandaqo]

With Routes#_currentRoute becoming private, checking the active route is nigh impossible. Can we have a getter for the current route? It's just a couple lines of code, if there are no objections, I'm willing to submit a PR.

[steve2507]

Similar issue here where I am currently resorting to tracking the state myself and updating this state during the enter() call. It would be great if the currentRoute would simply be exposed on the router.
Another option would be to fire an event whenever goto is called, containing the currentRoute as one of the event detail.
Having both would be perfect.