UMG and VR

[getnamo]

@NobleSpoon;489848

Main Menu update - Desktop now uses a VR friendly virtual cursor:

http://i.imgur.com/ddHzQ3G.gif

Also added in a way of executing console commands via the tablet terminal window:

http://i.imgur.com/jvGZcvV.gif

that is a snazzy looking UI with cool functions, nicely done!