Camera: Smart scene icons w. original artwork

These are functional replacements for the smart scene indicators
created from scratch for CM, and fully owned by the project.

I'm sure the size, border weight may need some adjustment, but
they're currently identical to the burst mode indicators in:
http://review.cyanogenmod.org/#/c/55716/

Change-Id: Ia9e18aa2cd1f78b8ef3674e71cb151e522f2e139
Camera: Add indicator icon for burst mode

* Patchset places burst mode indicator next to auto-scene detect
  if active.

Change-Id: Iba3f89490221b16dcce2531962f84752c00b1eef