Refactor security/jwt in order to use JWT builder inside a Quarkus application

[pjgg]

Summary

quarkus-smallrye-jwt-build is using a private RSA key in order to sign generated JWT tokens. This private key could be read just by setting the property smallrye.jwt.sign.key.location.

This PR creates a /login/jwt endpoint in order to verify the extension quarkus-smallrye-jwt-build inside a Quarkus application.

Please select the relevant options.

• New scenario (non-breaking change which adds functionality)

Checklist:

• Methods and classes used in PR scenarios are meaningful
• Commits are well encapsulated and follow the best practices