Moving frame_analyzer and rgba_to_i420_converter to src/tools.

It might be useful to have these under src/tools as this way they will automatically sync in Chrome.

BUG=

Review URL: https://webrtc-codereview.appspot.com/740004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2653 4adac7df-926f-26a2-2b94-8c16560cd09d
13 files changed