Added "Scene Collection" Menu

Now able to Switch between different Scene collections.
All Scene ".Xconfig" files now stored in the "sceneCollection" folder.
Changed "GetApplicationName()"  added "Profile: SceneCollection: " to the beginning of the app name.

Added "Scene Collection" Combo Box in Settings General

Can add/rename/remove new scenes collections in settings general.
Can add/rename/remove new scene collections while streaming.
Can change scenes Collections while streaming.
Merge pull request #339 from Glought/master

Added "Scene Collection" menu to switch between different scene collections.