Add setting to generate nullable value types for optional request body properties (Refitter)

[MSulsters]

It's often a problem that value types are not nullable in the request body, but the destination API expects them to be null, depending business rules.

Add a setting to make it possible to generate nullable value types for optional request body properties (Refitter)

To prevent I have to update those fields manually every time a re-generation of the code (i.e.. after a change of the destination API) is needed.

[christianhelle]

Thanks for taking the time to report this @MSulsters

This should be possible. I'll see if I can do it directly using the currently available options for Refitter, otherwise I'll have to implement it in Refitter first then update this tool afterwards

[MSulsters]

Thnx a lot for the feedback.