AudioManager: API to query independent/alias stream types

Add getter to query the "independent" stream types, e.g. the ones
that aren't aliased to any other.

Add getter to query stream type aliases.

Add listener add/remove to be notified of aliasing updates

Add TestApi to see if a device uses stream types or
volume groups to perform volume control.

Bug: 265076070
Test: atest android.media.audio.cts.AudioManagerTest#testIndependentStreamTypes
Change-Id: I14f9e5e7b22b3d6af51ef3b789b62ee99f7fccfa