Add support for ABC notation

[slimhk45]

There is already support for KaTeX in mathematics, it would be good as well to include support for ABC notation in music.

[mcanouil]

Seems like an easy Quarto extension to make for example using https://paulrosen.github.io/abcjs/

[cscheid]

It's not too hard, and I actually have a filter that I built for myself that uses abcjs. Let me see if I can make a nice abcjs extension.

[cscheid]

Update: I want to do this the right way, and it'll be better to wait until this PR lands. Look for the extension in our upcoming 1.3 prereleases.

[mcanouil]

Closing in favour of #2700