The k8s quickstart command is now functional, with suppport for https, xqueue, notes and minio. There are still a few bugs to get rid of, though.
Thus, we remove the -y/--yes options, which were kind of unintuitive, and we add instead `-i/--interactive`. The quickstart commands remain interactive by default, but can be silenced with `-I/--non-interactive`.
This adds the basic feratures that we need for a working plugin system, but there are still many TODOs in the codebase.