Settings: Add support for variable size pattern lockscreen (Part 2/2)

Thanks CM

for the base.....ported to new keyguard, moved service and some
new API 19 stuff

Change-Id: I016f6cf7688121df5d681d117c35fa8ec2ade497
Merge branch 'master' of https://github.com/BlakKatRom/platform_packages_apps_Settings