faDeck Directive

Added the Famo.us Deck view as a F/A `fa-deck` directive. This includes the new attribute `fa-open` which takes a "true" or "false" value and opens or closes the Deck accordingly.

Added F/A Deck specific tests and an example app in the header comment which should make it easy to document.

Big thanks to Zack for the pointers!

Cheers,
Samir