Media: Add MediaRouterManager to control media route of other apps

This CL is a draft for supporting seamless transfer

MediaRouterManager is added to notify providers seamless transfer request.

It also adds MediaRouter.setControlCategories() to let application notify
their control categories and filter out irrelevant routes.

Test: atest mediaroutertest after installing mediarouteprovider.apk

Change-Id: I7446855271d27ffaad2e82dda133bed80b9f9630