Support for Slovenian language second PR after rebase problem

[juref]

Contributing a new country ?

• [yes] Have you checked to ensure there aren't other open Pull Requests for the same country?

1. Create a new class in the Countries directory. It should extend the Country class.
2. Add a test for the new country in the tests directory.
3. Run the tests so a snapshot gets created.
4. Verify the result in the newly created snapshot is correct.

[Nielsvanpach]

PR looks good! I'll wait for some approvals on the generated results before merging.

[Nielsvanpach]

If applicable, I've added support for multi language: #177

[juref]

Hey, that's great, thanks! I wanted to do PR with this feature, but unfortunately I was admitted to the hospital after an emergency. All well now!

[Nielsvanpach]

Thanks