Add method hierarchy propagation via MIO and Hypo

[NebelNidas]

Loosely based on modmuss50@c4b22c0.

This acts as a replacement for the now deprecated MapSpecializedMethodsTask, allowing us to remove Enigma from the build process in the future.

Hypo was chosen as the backend since Tiny Remapper doesn't expose the necessary bridge information yet, Enigma's handling is broken and Matcher is neither on Maven, nor does it index synthetic sources/targets.
Hypo on the other hand provides most of the required functionality out of the box and is battle-tested thanks to its extensive use in the PaperMC toolchain since 2021.

If you want to compare the old yarn-specialized-mappings-v2.tiny with the new yarn-propagated-v2.tiny, I recommend pasting the following snippet into MapSpecializedMethodsTask:

@Override
public void run() {
	super.run();

	try {
		Thread.sleep(10000);
	} catch (InterruptedException e) {
		throw new RuntimeException(e);
	}

	MemoryMappingTree tree = new MemoryMappingTree();

	try {
		MappingReader.read(getOutputPath(), tree);

		for (MappingTree.ClassMapping cls : tree.getClasses()) {
			if (cls.getSrcName().equals(cls.getDstName(0))) {
				cls.setDstName(null, 0);

				for (MappingTree.MethodMapping method : cls.getMethods()) {
					if (method.getSrcName().equals(method.getDstName(0))) {
						method.setDstName(null, 0);
					}
				}
			}
		}

		tree.accept(MappingWriter.create(getOutputPath(), MappingFormat.TINY_2_FILE), VisitOrder.createByName());
	} catch (IOException e) {
		throw new RuntimeException(e);
	}
}

Succeeds #4123, whose code was accidentally pushed to the wrong repo.