WIP: feat: support RestResponse generation for reactive clients

[pickbreaker]

Closes #1033

[pickbreaker]

I am currently a little stuck on how to correctly implement the tests such that the RestResponse APIs are only generated if the maven profile ist reasteasy-reactive, because otherwise they throw a type error because of the missing resteasy-reactive dependency.

[hbelmiro]

I am currently a little stuck on how to correctly implement the tests such that the RestResponse APIs are only generated if the maven profile ist reasteasy-reactive, because otherwise they throw a type error because of the missing resteasy-reactive dependency.

@pickbreaker I'm not following.
Are you trying to return org.jboss.resteasy.reactive.RestResponse when using the classic profile?

[pickbreaker]

No. In the integration tests the same code is generated no matter the profile. But this config option should only be supported on reactive clients like with the mutiny option. Now when the reactive code is generated when running the tests in classic profile the compilation of course fails. I tried only generating the api for when the profile is reactive, but could not find a clean way to do so.