Legacy fabric support?

[Pixelwarp]

I personally think adding legacy fabric to this library would be an massive improvement, it most likely make this library get more used since some minecraft clients use legacyfabric. Legacyfabric probably isn't too different from the fabric code, both of them use pretty similar domains (ex. meta.fabricmc.net, and meta.legacyfabric.net). Anyways just thought this would be an great improvement.