Settings: Transparent Lockscreen from PA

Add Transparent Lockscreen to Lockscreen Interface under the Misc category.

Signed-off-by: Lokesh Chamane <lokesh.c703@gmail.com>
Add PAC's CheckBoxSettings

Based of CM's CheckBoxSettings.

Signed-off-by: Lokesh Chamane <lokesh.c703@gmail.com>
Add .gitreview

Change-Id: I4c739f9522bbe81ea83a74568d8ec7653b6c1a25