Added method binding for `multimesh_create` that was missing from VisualServer class.

doc/classes/VisualServer.xml

@@ -2604,6 +2604,14 @@
 			<description>
 			</description>
 		</method>
+		<method name="multimesh_create">
+			<return type="RID">
+			</return>
+			<description>
+				Creates a new multimesh on the VisualServer and returns an [RID] handle.
+				Once finished with your RID, you will want to free the RID using the VisualServer's [method free_rid] static method.
+			</description>
+		</method>
 		<method name="multimesh_get_aabb" qualifiers="const">
 			<return type="AABB">
 			</return>

servers/visual_server.cpp

@@ -1717,6 +1717,7 @@ void VisualServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("mesh_get_custom_aabb", "mesh"), &VisualServer::mesh_get_custom_aabb);
 	ClassDB::bind_method(D_METHOD("mesh_clear", "mesh"), &VisualServer::mesh_clear);
 
+	ClassDB::bind_method(D_METHOD("multimesh_create"), &VisualServer::multimesh_create);
 	ClassDB::bind_method(D_METHOD("multimesh_allocate", "multimesh", "instances", "transform_format", "color_format", "custom_data_format"), &VisualServer::multimesh_allocate, DEFVAL(MULTIMESH_CUSTOM_DATA_NONE));
 	ClassDB::bind_method(D_METHOD("multimesh_get_instance_count", "multimesh"), &VisualServer::multimesh_get_instance_count);
 	ClassDB::bind_method(D_METHOD("multimesh_set_mesh", "multimesh", "mesh"), &VisualServer::multimesh_set_mesh);