Add RC3 manifest

Change-Id: I744df96d1b20a76ca717ea16814049c505af9091
Add RC4 manifest

Change-Id: Ie11b88f0f820bdd67b81ee5d0e46e40a90b814e7
Add RC5 manifest

Change-Id: I9d069dd28f5096bf79efc5da9f43aebaea7ff796
add google external bits

Change-Id: I57764e7665966d245d6a5a2a2c9fdfa71b8aa89e
Add media-caf repository

Change-Id: Ife61fe260c159aa09e8debb3a81a83533573e337