Add Color Picker, Battery Bar and Style settings:

Color Picker and Battery Bar is ported from finnqbuilds:

https://github.com/finnqBuilds/android_packages_apps_Settings/commit/70898e91afe949c0de7da8ec06380a9ad9cf951f

Color Picker Update is ported from BeerGang:

https://github.com/BeerGang/android_packages_apps_Settings/commit/bd9d73d3398cbd94f3d55916aca3c938ff187189

Add Preference Screen "Style", (System settings -> System)
Add Preference Screen "Battery style", (System settings -> System -> Style)
Move List Preference "Battery status style" from "Statusbar" to "Battery style"