Added follow cam

Added "Controlled" mesh classes
Added Global Lighting Class
Added Gamepad controls
Split terrain nodes into Height and Perlin classes
Fixed Splitmesh node stuff

Graphics2/DirectXFramework.cpp

@@ -67,6 +67,7 @@ bool DirectXFramework::Initialise()
 	_resourceManager = make_shared<ResourceManager>();
 	_sceneGraph = make_shared<SceneGraph>();
 	_camera = make_shared<Camera>();
+	_globalLighting = make_shared<GlobalLighting>();
 	CreateSceneGraph();
 
 	return _sceneGraph->Initialise();