Add schema/subject deletion commands

[LouisVN]

This PR aims to add the following capabilities to the CLI:

• Delete a specific version of a schema
• Delete a subject
• Soft & hard deletes (i.e metadata including schema IDs)

Some docs were added in the related guide.

[LouisVN]

Hi @wlezzar!

The toggle to delete a schema version vs subject is based on the presence of the --schema-version flag. Feel free to suggest a better approach as this might not be the most elegant way to do this :smiley:

[wlezzar]

Amazing contribution @LouisVN : ) . Thanks a lot.

There are very minor feedbacks that I will provide shortly but the PR seems excellent for me overall! 👍🏼

[wlezzar]

@LouisVN I just tested it, it looks great 👍🏼 🚀

One last thing I noticed while testing:

> zoe --silent schemas delete input-events-topic-value --dry-run

{"type":"dry","subject":"input-events-topic-value","version":"version","hardDelete":"soft delete"}

I find this part in the response a bit confusing: "hardDelete":"soft delete". Can you make it rather: "hardDelete":false?

When this last change is done, we will be ready to ship it and create a new release 😉

[wlezzar]

Approved 🎉 🚀 . Let me know when you are ok to merge?

[LouisVN]

Thanks a lot! :tada: Go ahead and merge it if everything's fine for you :smiley:

[wlezzar]

Merged! Thanks to you for the contribution ; )