Merge changes Ia0f54124,I1e085f5e,Ic0a3ff0a,I141847df,I8ae4efa2 into lmp-preview-dev

* changes:
  camera2: Update native/managed key mappings.
  Camera2: switch API interface to java classses
  Camera2: Use ColorSpaceTransform and RggbChannelVector, replace enum byte[]
  camera2: Add new metadata keys, change types for existing range keys
  Camera2: Replace int[] by MeteringRectangle