Support TLS registry and certificate reloading

[michalvavrik]

Summary

This is but a portion of required changes I have in progress. However I think reviews will be easier if we go in smaller chunks. This PR:

• adds support for https://quarkus.io/version/main/guides/tls-registry-reference
• certificate reloading
• original functionality is still supported, however this PR is not backwards compatible and I have prepared Quarkus QE Test Suite commit to accompany FW bump that will keep tests as they were

Please check the relevant options

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Dependency update
• Refactoring
• Release (follows conventions described in the RELEASE.md)
• Breaking change (fix or feature that would cause existing functionality to change)
• This change requires a documentation update
• This change requires execution against OCP (use run tests phrase in comment)

Checklist:

• Example scenarios has been updated / added
• Methods and classes used in PR scenarios are meaningful
• Commits are well encapsulated and follow the best practices

[mjurc]

This looks nice at cursory review. I can't see anything wrong, so LGTM!

[mjurc]

Also added backport label, as we need this for 3.15 testing