Add pre-commit

[O-J1]

Adds the relevant editorconfig/ruff/pre-commit files that the main repo has. We have confirmed it works on my forked repo on a test branch

Befor merging @dxqb you need to:

1. Test this commit works locally for you (it did for me but I dont work with mgds)
2. visit https://pre-commit.ci/
3. Click on the Sign in With Github
4. Check if you have the permission to add Nerogar/mgds, you should see a manage if you do. As you can see I dont.
5. 
6. If you do then add it, before finally merging this commit

[dxqb]

I don't have access to this either. Can @Nerogar do this please?

[dxqb]

access granted by @Nerogar, thanks.
PR ready for merge in itself, but it already finds many ruff errors that should be fixed first.
https://results.pre-commit.ci/run/github/609569864/1770128999.I6XMQC26T1WjoiKN-bT8Iw

[O-J1]

access granted by @Nerogar, thanks. PR ready for merge in itself, but it already finds many ruff errors that should be fixed first. https://results.pre-commit.ci/run/github/609569864/1770128999.I6XMQC26T1WjoiKN-bT8Iw

Honestly, better than I expected when you said many, I got scared it was going to be a huge huge wall of linting erros

[dxqb]

access granted by @Nerogar, thanks. PR ready for merge in itself, but it already finds many ruff errors that should be fixed first. https://results.pre-commit.ci/run/github/609569864/1770128999.I6XMQC26T1WjoiKN-bT8Iw

Honestly, better than I expected when you said many, I got scared it was going to be a huge huge wall of linting erros