Request for CLI support via clap_completions and clap_completions_nushell

[xpe]

Since cargo-bundle uses clap, it is pretty straightforward to provide CLI completions by using clap_complete. Would the project maintainer(s) be open to a PR implementing it?

Additionally, since I use nushell, I would appreciate support for it. See: clap_complete_nushell

[mdsteele]

Sure, a PR would be welcome.