Swedish translation made

[SwedishRabbit]

Hello I am new to Github so sorry for eventual wrong way of posting this. I will try to learn.

Anyway I have attached here a fully fletched swedish translation file for Simple Calendar ready here for implementation.
It would be great if someone could include it in the next release.

Of course somebody would need to add the "SV" in "module.json" to enable the swedish.
I would be really glad if someone can help me bring this forward, I will try later to improve my ways of posting.

Anyway here is the sv.json file:
sv_json.zip