Launch SuperSU from Settings

If SuperSU is installed, show an entry in Settings below
"Developer options", which launches SuperSU when tapped.
At boot time SuperSU will detect if com.android.settings
contains the resources from this patch, and if so it
will hide itself from the launcher. This was implemented
in v1.85, so we only show the entry if the installed
SuperSU version is at least that.

PS3 - Added material green icons for SU

PS4 : Add support to disable SuperUSER from CM if SuperSU is supported

Change-Id: I80c2aeadbc5598dc8e5a59e3d404ed6a094420a5
Signed-off-by: klozz <xxx.reptar.rawrr.xxx@gmail.com>