Partial integration of existing game classes with the GUI
Merge branch 'master' of https://github.com/RLejolivet/Crapcity

Conflicts:
	Assets/Prefabs/GlobalVariable.prefab
	Assets/Scenes/Menu.unity
	Assets/Scenes/Solo_Multiplayer.unity
	Assets/Scripts/GameLogic/Game Manager & Network/GameManager.cs
	Assets/Scripts/GameLogic/Player Infos & Controls/PlayerAvatar.cs

This commit is epic.