Add more control over scoped injection of Fluent validators

[StellaAlexis]

Is your feature request related to a problem? Please describe.
The wolverine FluentHttp library currently registers fluent validators as singleton. This prevents the use of translated error messages and potential other usage of scoped/transient resources within the validators.

Describe the solution you'd like
I think the best solution would to have the options to pass the lifetime on 'UseFluentValidationProblemDetailMiddleware' with singleton as default value. Next to that an attribute can be added to modify the scope of a single validator.

[jeremydmiller]

That's not 100% accurate. Wolverine registers validators as singletons if there are no constructors with arguments by default, and any concrete validators with dependencies as Scoped