GameInterface

The interface for single game and for multi game
Merge remote-tracking branch 'origin/master'

Conflicts:

	CockBlock8.1/CockBlock8.1/CockBlock8.1.WindowsPhone/Main/MultiGameMenu.xaml.cs

	CockBlock8.1/CockBlock8.1/CockBlock8.1.WindowsPhone/Main/SingleGameMenu.xaml.cs