Implemented navigation

Started implementing navigation
Navigation implementation
Finished Navigation Implementation

Removed a ton of unnecessary code.
Updated Demo code

removed calls
Updated demo code

removed unused method in Extensions. removed unused classes
Updated demo

updated demo code and set a default value of true for the pan gesture
being enabled by default.
rotation issue
updated demo code
Updated the shadow on the content view to include a shadow on the right side for the right menu. Also fixed an issue where starting the content view in landscape, opening the right menu, then rotating. The shadow would stay. Updated code to recreate the shadow after rotation.
Merge branch 'Content-View-Navigation'