update of minigames GUI
Merge branch 'develop' into feature/MinigamesGUI
Update minigames GUI
remove several old files
Update mini-games GUI functionality
Fix mini-games GUI camera settings
update visual of GUI;
add GUI to pexeso mini-game
Merge branch 'feature/MinigamesGUI' into develop
Fix wrong merge;
mini-game GUI should works well in Hanoi and in Pexeso (and Siluetes and Similarites) games;
Still not applicable to mini-games with more than one scene.