Lockscreen additions:

Settings: LockBeforeUnlock the new way (2/2)

Due that aosp removed the whole LockBeforeUnlock controll (show slider
lockscreen before an unsecure internal lockscreen) we must try to find another way
without touching the security system itself. Long guess sort solution, lmao

Interface->Lockscreen->Security

Patchset:
- correct strings

Change-Id: Iec178ab5ab57ac370e935e7fd4b426e83036d2bf

Settings: Security: implement a pin keypad shuffler [2/2]

this is to further prevent people using the tablet guessing your pin based on fingerprints left on the screen
example of the expected outcome: - https://www.dropbox.com/sh/r3xb2q53ksaqni9/Oz1Eu8Dm7O

PatchSet:
- fix checkbox was wrong assigned
- enable only for PIN Password lock
- small cleanup of old code

PatchSet:
- cleanup

PatchSet:
- add modes.....disabled/always/on request

Change-Id: I7e485827f6d62ee239015cfa96f2a20169d28486

Conflicts:
	res/values/arrays.xml