base

Initial checkin of a framerate test app

Measures the time to do nothing but clear the screen in an
OpenGL Java app. Spews frame time statistics to the log.

Control long frame time by setting debug.longframe_ms;
e.g., adb shell setprop debug.longframe_ms 33

Change-Id: I435a3cb170048349e00417c44db42121c68744b2