Frameworks: Lockscreen custom wallpaper (1/2)

  - Color Fill
  - Custom Wallpaper
  - Default background
  - Alpha slider in color fill

Change-Id: I22a2445a8e5f2bd0184a31aae83ed0f9c99a254f
Frameworks: Port lockscreen style options (1/2)

-  custom lockscreen handle image
-  lockscreen lock and handle color
-  glowpad dot color
-  widget frame color

Change-Id: I01c0984e195cf1bef6000140f2fb3a1e77241fdd