Fix problems with SIRI 1.0 to 1.3 mapping

Enums were seen as primitive types that don't need conversion. However the siri-standard contains some enum's itself, not converting those resulted in exceptions effectively killing the application for use with a SIRI 1.0 endpoint
Actions made:

Create tests using SIRI 1.0 xml snippets
Only see enums as primitive when not part of the SIRI package
Convert enums using reflection and enum name