d3d9-nine: extend includes to fix compile error

d3d9-nine/present.c: In function ‘present_has_d3dadapter’:
d3d9-nine/present.c:1774:24: error: implicit declaration of function ‘XrmUniqueQuark’ [-Wimplicit-function-declaration]
 1774 |     d3d_hwnd_context = XUniqueContext();
      |                        ^~~~~~~~~~~~~~

Fixes: #167

d3d9-nine/present.c

@@ -23,6 +23,7 @@
 #include <d3dadapter/drm.h>
 #include <X11/Xatom.h>
 #include <X11/Xlib.h>
+#include <X11/Xresource.h>
 #include <X11/Xutil.h>
 #include <stdio.h>
 #include <stdlib.h>