Reboot Recovery & Reboot Bootloader in Power Menu

Coded fram scratch by me (yashade2001). It's not a port from CM11 or other KK ROMs. Not hardcoded, used IPowerManager.

Drawables by MrBaNkS.

Change-Id: I9138a3b9b7ef5ba96806bf5e388f36a267530ca3

Conflicts:
	core/res/res/values/symbols.xml