Add camera image analysis test application.

This is a start for an application to analyze camera API functioning
by inspecting output images taken of a standard color checker target.
Currently it uses Bitmaps produced by Camera.takePicture().

The detection routine can currently can detect a color checker from an
RGBA or RGB565 Bitmap, returning the average color for each color
checker patch, roughly linearized and normalized to 0-1. Also
generates a debug output Bitmap for algorithm testing.

Does not yet include actual camera API tests.

Change-Id: I83a1f59e28051b29ae4b21ceb75fbccfdf69ccfa
11 files changed