This CL adds a set of automated functional tests for the AudioEffect class and the following derived classes: BassBoost, Equalizer, Virtualizer and Visualizer. These tests require the following file on the SD card: /sdcard/media_api/music/sine_200+1000Hz_44K_mo.wav Change-Id: I6ec3ec6f9ede10ccf2dd3b1e9ee4b08396740dee