[Compliance] Display licenses in app

[gino-m]

trafficstars

Potentially using https://github.com/google/play-services-plugins/tree/master/oss-licenses-plugin

[sufyanAbbasi]

I'm on it!

[sufyanAbbasi]

Do we want to show the licenses trigger as a small link at the bottom of the menu, above the build version info?

[shobhitagarwal1612]

We can also put it in the settings screen.

[gino-m]

Please work with @rawbzz to determine the proper placement and UX. Thanks!

[rawbzz]

Android designs