Improving new interceptors validation

There is a lot more to do, but I'll send new PRs to prevent a biggest PR.
The point here is that we are creating 3 validation rules to validate new 
interceptors during entire application, instead 6 for each request. Those
validations now are running on discovery of interceptors, so it fail fast...
and now it is CDI managed. Releated with #82 issue. __note__: I am not
changing CustomAcceptsVerifiers, because it deserves an different PR.