wayland: implement wl-fixes

src/it/test_transport.rs

@@ -73,6 +73,7 @@ impl TestTransport {
             virtual_keyboard_manager: Default::default(),
             input_method_manager: Default::default(),
             text_input_manager: Default::default(),
+            wl_fixes: Default::default(),
             seats: Default::default(),
         });
         self.send(wl_display::GetRegistry {