Forward port CM Screen Security settings (1/2)

 * Variable size pattern lockscreen
 * Toggle dots/error pattern visibility

Co-authored-by: Dhina17 <dhinalogu@gmail.com>
Co-authored-by: Roman Birg <roman@cyngn.com>
Co-authored-by: Scott Mertz <scott@cyngn.com>
Change-Id: Ic65b1a2af398faffb83776ee4013d47f79ab6619