Add option to recursively format all files in a specific folder

[34j]

Since shed has the ability to specify which files to format, I would like to request this feature. autoflake, isort, and black all have this feature, so it would not be a bad idea for shed to have this feature.

If implemented like autoflake, it would be like:

shed -r /path/to/folder

If implemented like isort or black:

shed /path/to/folder

I am sorry in advance, but I will not have time to implement this feature. If you don't like it, please close it.

[Zac Hatfield-Dodds]

It might be convenient, but it's also a surprisingly difficult thing to get right with good performance! I'd rather encourage users to use git, pre-commit, or other tools to solve this (rare) problem and spend my time improving the refactoring logic.