vr: add OpenXR headset output, VR tracker and VR controller input behind --vr (#1726)

src/libs/libs.cpp

@@ -92,6 +92,7 @@ LIB_DEFINE(InitFont_1);
 LIB_DEFINE(InitFontFt_1);
 LIB_DEFINE(InitAgcDriver_1);
 LIB_DEFINE(InitHmd2_1);
+LIB_DEFINE(InitVrTracker2_1);
 LIB_DEFINE(InitLibKernel_1);
 LIB_DEFINE(InitNet_1);
 LIB_DEFINE(InitPad_1);
@@ -131,6 +132,7 @@ void InitAll(Loader::SymbolDatabase* s) {
 	InitDeviceService_1(s);
 	InitUsbd_1(s);
 	InitHmd2_1(s);
+	InitVrTracker2_1(s);
 	InitLibKernel_1(s);
 	LibMouse::InitMouse_1(s);
 	LibKeyboard::InitKeyboard_1(s);