Feature Request: add completion subcommand to generate bash/fish/zsh/... completions

[kastl-ars]

Thanks for this small, but very useful plugin.

Would it be possible to enable the completion subcommand that many kubectl plugins have? That can create completions for bash, fish, zsh or powershell? That would be making using the plugin easier and should hopefully not be much effort.

(I got the impression that this is something that is very easy to add, as it seems to be coming from some kubectl code part, but I might be wrong. And I am no golang programmer so I am lacking the skills to create a PR for this).