Appending `Custom` to classnames is already duplicated [multiples](https://github.com/wsdl2phpgenerator/wsdl2phpgenerator/blob/master/src/Wsdl2PhpGenerator/Service.php#L90) [places](https://github.com/wsdl2phpgenerator/wsdl2phpgenerator/blob/master/src/Wsdl2PhpGenerator/Type.php#L62) in the code base.

It would be nice to have this refactored. If not now then soon.