Cleaned up OpenGLUI samples and added Blasteroids.

Removed .hex files and replaced with binary files. These will get 
  added in a separate non-reviewed CL to get around Rietveld limitation.
Review URL: https://codereview.chromium.org//13345002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20745 260f80e4-7a28-3924-810f-c04153c831b5
9 files changed