[1/2] Base: implement App circle sidebar

Change-Id: I08d2a3a7e0f8df20e801e585d4cac8547a740a3e

Conflicts:

	core/java/android/provider/Settings.java
	packages/SystemUI/res/values/custom_dimens.xml
	packages/SystemUI/res/values/custom_styles.xml
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
nit picks

Signed-off-by: Chintan Shah <cgintan1998@gmail.com>
Fix derp

Signed-off-by: Chintan Shah <cgintan1998@gmail.com>