In spotlight classes, "Manager" and "Indicator" are used as prefix in
the class names.
e.g. Efl.Ui.Spotlight.Manager_Plain, Efl.Ui.Spotlight.Indicator_Icon
However, those classes are basically manager and indicator classes with
different features. Therefore, "Manager" and "Indicator" should be used
as postfix in the class names.
e.g. Efl.Ui.Spotlight.Plain_Manager, Efl.Ui.Spotlight.Icon_Indicator
However, for the easier usage of C APIs, c_prefix of those classes are
remained to be "efl_ui_spotlight_manager_xxx" and