Upload .well-known files

[nataliescottdavidson]

Hack to allow uploading .well-known files as requested by customers using wrangler for static site hosting- some frameworks use these dotfiles

closes #980

[ashleymichal]

whew. do you think you could write an RFC for replacing walkdir?

[nataliescottdavidson]

whew. do you think you could write an RFC for replacing walkdir?

Yep, will do.

[nataliescottdavidson]

Right now we use walkdir to traverse the filesystem with an iterator, and for the include/exclude glob logic. Ideally the include/exclude logic would have regex.
To replace walkdir, we would need to write our own directory iterator and include/exclude logic. I think that forking walkdir/include and modifying include to use regex makes the most sense.
For now, I think this hack is worth it to unblock users.