[CLI] Support repo management (create, list, delete)

[Wauplin]

Originally requested by @TheBloke on slack (private)

Simple repo management - list repos with filtering (author= being most important, but ideally also string match on repo name), and delete repos (I know create is there already)

ideally also simple repo changes like make an existing repo public/private

• Create repo already exists
• List repos: let's revisit the current huggingface_hub API for list repo as well
• Delete repo: let's be careful here (request stdin confirmation?)
• Toggle private/public repo: 👍

[Wauplin]

(PR started in #1671)