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
Notification shortcuts spacing and tablet transition fix

Change-Id: Ifcf888673b6ab80b43d427cf2a03b0beb7f56689