screenshot: quick delete action

Add option to delete screenshot from notification

Change-Id: I0f153bc3c72b902163b4ae75e220ddb09e3fcb11

Conflicts:
	packages/SystemUI/res/values/cm_strings.xml

Conflicts:
	packages/SystemUI/res/values/ras_strings.xml

Conflicts:
	packages/SystemUI/res/values/simpleaosp_strings.xml
status bar: native battery percentage

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/BatteryMeterView.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsModel.java