Sean Cunniffe

fix: allow response error handler to set status code

1

As mentioned in #1964 Version: 2.4.1 Issue: Status code is set to 200 before marshalling data into body inside visit functions, so when an error occurs marshalling the ResponseErrorHandlerFunc cannot...

Version: 2.4.1 Issue: Status code is set to 200 before marshalling data into body inside visit functions, so when an error occurs marshalling the ResponseErrorHandlerFunc cannot set the status code....

It's common for schemas to have extra fields "usually starting with x-". Added functionality to handle the extra fields for marshalling and unmarshalling.