Metabase_without_docker

[modem7]

Related to https://docs.crowdsec.net/blog/metabase_without_docker/

The repo for liberodark's helper script has been stale for quite some time.

I've made some significant improvements to the script, increasing automation for users, and making it easier to use and install.

Originally had hoped that my PR would have been looked at and merged by the owner, but doesn't seem to be any interest in doing so.

I'd be happy to take over maintenance of the script and apply any changes required if needs be.

Please let me know and if you're happy to, I'll sort out my repo to take over, and create a PR here to update the docs.