Custom actions on navbar recents long press (1/2)

For now 7 actions are possible
1 - none
2 - last app
3 - screenshot
4 - kill app
5 - notifications panel
6 - QS panel
7 - power menu

Thanks to @kufikugel for base and idea in SlimRoms navbar and navring customization

Change-Id: Ic96d8bb31025efd7260759709ddb8d9736c2619f