feat: Added a ISO639-1 decorator
This decorator is used to check if a string matches the ISO 639-1, that describes how country languages prefixes should look like. Fortunatelly, it just delegates the validation to an already existent function in the validator library
This PR implements issue #2045
It would be great if you could update the README.md as well! Please add a test.
@Gustrb Any update on your PR? This looks like a nice addition 😊
@te-online, I kind of forgot about it. I added here since I needed this function inside the library, but I hacked my way into it a few months ago
Will work on adding some tests and fixing the comments pointed out :P
any updates on this PR ?