Some Holo Test Improvements

These changes were made in JB but didn't make it into future releases:

- Add a unique image per display bucket to tell what class of resources
  the system is loading.

- Show width and height in dips

- Turn off hardware acceleration for emulator stability.

Change-Id: If85ea04fea687e6a1be86bce8d62859ce1a7c8ec
23 files changed