Add translation for Italian

[marcocarotta]

Expected time to finish: 3/4 weeks. I'll start working on it from first of september.

[satwikkansal]

Hey @marcocarotta, how's it going? Let us know here if you'll need any guidance!

[marcocarotta]

Hi, thanks for the great job of doing this repo.
I was planning to start it in September, when I'll be a bit more free.
If you have any suggestion please feel free to tell me before I start!

[satwikkansal]

Understood, thanks! You can check how existing translations are done in https://github.com/satwikkansal/wtfpython/tree/master/translations for reference.