Game About window

We should reproduce the contents of the original game's About dialog.

Translation of wrongly decoded messages:

> Программирование: Антон Буцев.
> Графика: Евгений Харкевич.
> Музыка и звуки: Александр Чистяков.
>
> Copyright (c) 1995 Nikita,Ltd.
> Все права защищены.

Note the game icon here as well.

I don't think we _definitely_ should extract these lines from the game binary, since the WinAPI dialog structure in the resources may be very hard to work with (though I can see this dialog in the binary resources). Maybe just translate it to English ourselves?

TODO:
- [ ] Present the original About window
- [ ] Add the font license