Merge branch 'master' into GUI
 - dance games now loads levels in menus
 - runner games now loads levels in menus (no implementation for loading data from level yet)
 - added menu and dummy xml files for all scenes except for the darts and dinner dash ones
 - allowed menu to select a custom background or one from level config file
 - added menus to darts games (level select still basic while xml serialization is pending)
 - fixed bug in darts games where they used the wrong camera (went unnoticed until GUI cam was added)
 - moved LevelLoader and IMinigameCrossSceneInfo to proper folder
Merge branch 'GUI'
Merge branch 'master' into FroggerBuilder
 - provided all assets to make Greenland game
 - changed the old debug gui transform to be named GUI_Debug
Merge branch 'FroggerBuilder'