1/2 Base: implement app circle sidebar

Change-Id: I6ea963ec91aa15c251b90123054e636e7ca27139

Conflicts:

	core/java/android/provider/Settings.java
	packages/SystemUI/res/values/custom_dimens.xml
	packages/SystemUI/res/values/custom_strings.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