Remove dependency on dxguid.lib

Windows/DinputDevice.cpp

@@ -20,7 +20,6 @@
 #include "input/input_state.h"
 #include "Core/Reporting.h"
 #include "Xinput.h"
-#pragma comment(lib,"dxguid.lib")
 #pragma comment(lib,"dinput8.lib")
 
 static const unsigned int dinput_ctrl_map[] = {

Windows/DinputDevice.h

@@ -16,6 +16,7 @@
 // https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
 
 #pragma once
+#include <InitGuid.h>
 #define DIRECTINPUT_VERSION 0x0800
 #include "InputDevice.h"
 #include "dinput.h"