Framework: Notification Shortcuts (1/2)

This feature adds shortcut icons to the bottom of the notification drawer.
Preview: http://goo.gl/hSHQM

Feature highlights:

- Select up to 16 different shortcuts
- Link to any application or activity
- Use the default application icon, pick from an image or pick from included stock icons
- Colorize application/image icons as well as stock
- Hide carrier label

Change-Id: I9a2770c560c765453549b8f99598afbbb24e663a
Frameworks: Add PNG'S for Notfication and Lockscreen shortcuts

Due of sharing resources this commit adds the shared resoures for
Notification shortcut feature and Lockscreen shortcuts feature

cheers

Change-Id: Ida0c2a576a430cff392f14ece9174048b983d594
Fix pinterest typo