Add AudioTrack.isDirectPlaybackSupported method

The method checks whether the provided AudioFormat can be played
via currently connected output devices w/o SRC or downmixing
by the framework.

Bug: 120044865
Test: atest CtsMediaTestCases:AudioTrackTest#testIsDirectPlaybackSupported
Change-Id: I63e8334a60d48c17999f500d87360f9c71185dfb