Flag for switzerland

Switzerland is not a language, so I don't think that belongs here?
Please tell me, if I'm wrong. And please prepare a MR.

Swiss-German is not a official language, but still, in context of Drupal it is chooseable/addable as language.
It's kind of a derivative of high German.

Ok, thanks for the clarification @itsurk!

PS: If you provide a MR, that would be helpful.

There you go, I had a bit of problems with the second MR against 2.x.

Hoping you can use these two :D

Thanks, I'd like to have @pfrenssen's feedback here due to the special things like the format and the language id, before we merge this.

Thanks!