Status bar: Custom notification- and system icon color, (1/2):

- Option to colorize notification icons
- Custom color for the notification- ticker- and system icons
- Custom color for the notification count icon
- Custom color for the ticker text
- Custom color for the notification count text

NOTE: This will break theming the mentioned icons and text colors
      via Theme Chooser.

Change-Id: I59714b6238d0caa467799ab588c74f6fb26b6697