Added the camera class

Added the DDS Texture Loading for future use
Added the gamepad class for future use
Added first child method to the scenegraph
Added RGB to intensity and lerp methods to the shared methods class
Added the terrain node class with normals
Fixed issue with submeshnode not passing the world transform to the actual meshes

Graphics2/GamePadController.h

@@ -0,0 +1,24 @@
+#pragma once
+#include "Core.h"
+#include "DirectXCore.h"
+#include <XInput.h>
+#pragma comment(lib, "XInput.lib")
+
+class GamePadController
+{
+public:
+	GamePadController();
+	~GamePadController();
+	void ProcessGameController();
+
+private:
+	XINPUT_STATE _controllerState;
+	DWORD		 _lastPacketNumber;
+	bool		 _firstTime;
+
+	// These two values are used to avoid having to calculate square roots (which are very time consuming)
+	// when we are checking if the movement of the left or right thumb stick is in the dead zone
+	DWORD		_leftThumbDeadZoneSquared;
+	DWORD		_rightThumbDeadZoneSquared;
+};
+