added controller for different menu types
added scenes for different menu types
added assets for menu
.
fixed dependencies
removed pngs
started adding NavMeshes
Merge remote-tracking branch 'origin/LevelDesignBranch' into Art_And_Modelling

Conflicts:
	Thalos/Assets/Scenes/GameScenes/scene_01.meta
	Thalos/Assets/Scenes/GameScenes/scene_01.unity
	Thalos/ProjectSettings/EditorBuildSettings.asset