Add additional names for Russia & Ukraine.

Added other known names for Russia and Ukraine.

 * "Россия" (Russia) is more commonly used term.
 * "Украина" is Ukraine in Russian.
 * "Україна" is Ukraine in Ukrainian.

We need to add "Россия" into `names` because it is used more often than more official "Российская Федерация". It appears in most of the service API results and having it in the `names` would make our code much simpler.