Add Milkdrop support

[Taiko2k]

New requirements:

• PyOpenGL
• libprojectM-4 >= 4.2 (not yet released)

Todo:

• Base support
• Next random (click)
• Unlocked FPS + Counter
• Auto advance shuffle
• Remember last preset on reboot
• Separate menu from pic menu
• Provide curated preset pack + Auto DL
• Album art burn in (waiting on upstream support)

[C0rn3j]

Platform	Status / Notes
Arch Linux	Talked to the maintainer, as I understand it, we'll ship libprojectm as 4.x in the near future, while keeping projectm at 3.x.
MSYS	Made a request here: msys2/MSYS2-packages#5862
brew	Someone would need to pick this PR back up, the issue with it will supposedly be easier to debug in 4.2: Homebrew/homebrew-core#198257
Ubuntu (CI)	Yeah no, they're still at 2.x for 26.04, I think we'll be screwed there. There is a PPA for 3.x at least - https://launchpad.net/~trinitronx/+archive/ubuntu/projectm - sent the maintainer an email about updating it