Support for including resources files into native images

[lsergio]

This is a proposal for solving #4639. It has been developed with AI assistance and needs further testing.
The idea here is to focus primarily on the documentation of the proposal and check if it sounds reasonable before I invest more time.

(I will be on PTO for a couple of weeks and will review any comments when I come back)

[squakez]

Thanks for the PR. I will give a look asap and provide a detailed feedback. Just a quick consideration though, about the work we'll be doing in #6455 and #6456 which may change the way we generate the project. Ideally we should try to design something which does not affect those parts, for example, only having the logic in the Quarkus trait (if that is even possible).