All GalView subclasses return a static string in their get_type_code() methods, so replace the method with a static string pointer directly in the class structure, and remove the "type-code" GalView property.
All GalView subclasses return a static string in their get_type_code() methods, so replace the method with a static string pointer directly in the class structure, and remove the "type-code" GalView property.