Support dev mode installations with path rewrite.

[gregglind]

After reading https://github.com/pfmoore/editables/issues/20, I think editable fixed the issue (2023) after this patch to Hatch was written.

As a very lazy programmer who favors monorepos and shared namespaces, I love that path rewrite allows me to skip making a bunch of empty nested folders, and I hope to use it more!

Code is here: https://github.com/pypa/hatch/blob/d81790e47faaa145d1b6ad2fabc73327cc5d62a2/backend/src/hatchling/builders/wheel.py#L535

[liquidcarbon]

+ #1956