Add `gdk clickhouse` command

What does this Merge Request do and why?

With the introduction of ClickHouse, we had to specificy a different default port for it as it was using the 9000 which is also used by minio.

This made it slightly inconvenient to use as it now requires a --port=9001 (when using GDK new default port).

This command solves that, similar to how it does for postgres.

Part of #1498

Merge Request checklist

• This change is backward compatible. If not, please include steps to communicate to our users.
• Tests added for new functionality. If not, please raise Issue to follow-up.
• Documentation added/updated, if needed.
• gdk doctor test added, if needed.
• Add the ~highlight label if this MR should be included in the CHANGELOG.md.