Adding support for the OpenXR futures extension

modules/openxr/extensions/openxr_debug_utils_extension.h

@@ -34,6 +34,11 @@
 #include "openxr_extension_wrapper.h"
 
 class OpenXRDebugUtilsExtension : public OpenXRExtensionWrapper {
+	GDCLASS(OpenXRDebugUtilsExtension, OpenXRExtensionWrapper);
+
+protected:
+	static void _bind_methods() {}
+
 public:
 	static OpenXRDebugUtilsExtension *get_singleton();