inplement mod, s3m and xm support via lavaplayer's xm-format extension

[forkiesassds]

This pull request...

• [ ] Fixes a bug
• [x] Introduces a new feature
• [ ] Improves an existing feature
• [ ] Boosts code quality or performance

Description

This implements Lavaplayer's xm-format extension (via a fork due to upstream having no working builds) to allow people to play mod, s3m and xm files.

Purpose

This allows people to play a lot of tracker files via the bot.

Relevant Issue(s)

None.