wrapper: invoke handler.set_memory_maps()

src/retro/wrapper.rs

@@ -307,7 +307,10 @@ impl StaticCallbacks {
                     .collect();
                 handler.set_controller_info(controller_info)
             }
-            // TODO (experimental) EnvCmd::SetMemoryMaps => {},
+            EnvCmd::SetMemoryMaps => {
+                let map = Self::from_void::<MemoryMap>(data)?.clone();
+                handler.set_memory_maps(map)
+            },
             EnvCmd::SetGeometry => {
                 handler.set_geometry(Self::from_void::<GameGeometry>(data)?.clone())
             }