Refactor CLI to better align non-interactive and interactive commands

[alexevanczuk]

use_packs has a CLI for interactive (via bin/packs) and non-interactive (via bin/packs some_command).

It's possible for these to drift, which I recently fixed so that every command is available in both interactive and non-interactive modes (except for bin/packs list_top_dependency/privacy_violations, which exists as query in the interactive commands).

There are some changes we could make to improve this.

Namely, if we redesign the commands so that a single file defines both the interactive and non interactive commands (e.g. through some interface), then by design we can ensure both are always populated.

Along with this we should probably add better tests for all commands CLI and non-CLI

[professor]

Closing as per Alex,