SystemUI: Expose heads up.

Signed-off-by: Roman Birg <roman@cyngn.com>
Signed-off-by: Adnan Begovic <adnan@cyngn.com>
Change-Id: I276cb1c80d392b7dbac28e5f553207415b558481

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
QS: New torch icon

Create a new torch icon which can be used across the system
(Quick settings, Quick launch, Torch app).

Screenshot: http://goo.gl/V5S8LC
Vector graphic: http://goo.gl/NvjZuM

Change-Id: I4ddf97847d4488d1c344d50b5755a67537f6a126