Configuring `JsonPOJOBuilder` "withPrefix" on external configuration file

It would be really nice if the default `withPrefix` property in JsonPOJOBuilder could be exposed in a property file. (Same goes for some of the other properties, but this is the one I want to focus on)

That way, when I am writing my builder according to company standards, I don't have to worry about adding the annotation manually. Also consider that when using lombok, the @Builder annotation, the builder methods are just `variablename` and not `withVariablename`.

I think the more configurable a project can be, the better.