Fix C# bindings after lightmapper changes

scene/register_scene_types.cpp

@@ -436,6 +436,7 @@ void register_scene_types() {
 	ClassDB::register_class<BakedLightmap>();
 	ClassDB::register_class<BakedLightmapData>();
 	ClassDB::register_class<LightmapProbe>();
+	ClassDB::register_virtual_class<Lightmapper>();
 	ClassDB::register_class<GPUParticles3D>();
 	ClassDB::register_class<CPUParticles3D>();
 	ClassDB::register_class<Position3D>();
@@ -688,6 +689,7 @@ void register_scene_types() {
 	ClassDB::register_class<AnimatedTexture>();
 	ClassDB::register_class<CameraTexture>();
 	ClassDB::register_virtual_class<TextureLayered>();
+	ClassDB::register_virtual_class<ImageTextureLayered>();
 	ClassDB::register_class<Cubemap>();
 	ClassDB::register_class<CubemapArray>();
 	ClassDB::register_class<Texture2DArray>();