You could try to put your data in some other repository, but since you are versioning that data anyway, that introduces additional pointless complexity and besides the code is useless without the data to work with - so just stick them together and be done with it. If your VCS cannot handle that, instead of having it dictate your workflow towards an inferior solution, change your VCS.

At least as far as games are concerned, data and code are interwoven and any other approach is guaranteed to either fail or produce unnecessary and easily avoidable complications.

I've put them there a bunch of times, they were (at least initially) edited by the same people as the rest of the code and they were required for the app to compile.

This seems like a reasonable enough place to ask: if you have a project under MIT, and I pull a function out of one file to use in my project, where exactly do I owe credit? In a comment above the specific function? At the top of the file? In the main license file for the project (even if the whole project is under e.g. GPL)? Some combination of the above?

E.G. there are services like small claims court in the UK that _mostly_ automate the billing on unpaid invoices, is there something like that for licensing?

It's not under the github.com domain, but they did create it. IIRC they link to it somewhere when you go to create a new repo, along with a drop down to select what license you want (Assuming you're not just pushing an already created repo).

I think it is a good request though. I'm fond of MIT, but with the right wizard, I may also find that GPL or something else may be a better fit for what I'm working on.