Settings: Customizable mobile and Wifi network icons/text color, (2/4):

Included:

- Custom mobile network strenght icons/text color,
  (normal and connected to google servers)
- Custom mobile network type icons,
  (normal and connected to google servers)
- Custom mobile network activity icons color,
  (normal and connected to google servers)
- Custom Wifi network strenght icons color,
  (normal and connected to google servers)
- Custom Wifi network activity icons color,
  (normal and connected to google servers)

- Option to enable defaults:

  - Theme default: disabled custom colors,
    (to support Theme Chooser Themes)
  - System default: set color values from "System Theme",
    (same color values as stock CM10.2)
  - Custom colors: enable custom user colors

Change-Id: Ib83599b43b0a17eff9f8fba3c8da507077dac384