Ukrainian localization.

[romamakar]

Hi,
I want to add Ukrainian language to this project.
Waiting for approval to create a PR
Thnx

[Johannes-callidus]

Hi,
I don't see a reason why it shouldn't be added. But I just want to make sure that you're aware that as far as I know Ukrainian wasn't supported in the base game and therefore you would have to include that translation in a seperate file for the OG translations and in the code for augustus specific translations.

[crudelios]

Closing due to the #1667 PR.