Settings: Heads Up background color && transparency [1/2]

PS12: squash dependency - heads up settings now under interface menu

PS: add ability to set custom heads up text color

Change-Id: I606bf35d5db9a253448971bdedf6fdb3acad6452
Settings: usb debug notify: ita translation

Change-Id: I79c69e48737e5cb76d2c0f8eecab602864f6ed90
Launch SuperSU from Settings