HALO colors (2/2)

@daxxmaxx 's coding adapted by Rootbox's
Reference: https://github.com/Root-Box/packages_apps_Settings/commit/1acc850351ddf7e4d819ce921d676b0b67911556

-- ColorPicker*.java files from RootBox's  @Bajee11: http://goo.gl/VZoH1

-- Manually added  @daxxmax 's halo color's coding into PA's coding

Signed-off-by: Ayysir <dresadd09691@gmail.com>