[Feature Request] Blacklist a user

### Is your feature request related to a problem? Please describe.

I have a user in my discord who keeps using !stop and I can't blacklist them. I have to have the dj role as the normal member role as I would like users to be able to control the volume.

### What is your ideal solution to the problem?

To add a !blacklist command that you can use with the users user id to block them from using commands.

### How would this feature be used?

1. get the id of the user
2. type (prefix)blacklist (id)

### Additional Info

_No response_

### Checklist

- [X] I have checked [the documentation](https://jmusicbot.com/) to make sure this feature doesn't already exist
- [X] I have searched for [similar feature requests](https://github.com/jagrosh/MusicBot/labels/enhancement)
- [X] I have confirmed that my requests is **not** on the [list of things that will not be added](https://jmusicbot.com/things-that-wont-be-added)
- [X] I am running the latest version of the bot: 

No files or tests are named. Start by tracing the existing command and permission-handling entry points, then determine how a user ID blacklist should be stored and checked. Done should mean an authorized user can blacklist a specified ID and that user is blocked from commands, including !stop.

Written by the indexing model from the issue text.