Upgrade visualizer

* A different visualizer: http://imgur.com/npV2zyO


* Much smoother than the current one,
  Always stays above 60fps (even in powersave mode).
* Abandon android-visualizer library.
* Set visualizer color alpha to 75%

Change-Id: I08ad5815893735f4427e84d460c4f7a06bf4b019
Signed-off-by: Utkarsh Gupta <utkarsh.eminem@gmail.com>