feat: better FatalLoadError, clean up build outputs & fix some def's

Minecraft.Client/stdafx.h

@@ -71,6 +71,7 @@ typedef unsigned __int64 __uint64;
 // TODO: reference additional headers your program requires here
 #include <d3d11.h>
 #include <DirectXMath.h>
+#include "Windows64Stubs.h"
 using namespace DirectX; 
 
 #define HRESULT_SUCCEEDED(hr) (((HRESULT)(hr)) >= 0)