Genesis: add an option to use only recommended sources in Autoplay.

By default the addon uses only recommended sources, this pull request adds an option to disable it.

I'd also recommend removing "Firedrive" from the list of not-recommended Autoplay sources, since a lot of times it's the only available HD source, and I've used it multiple times without a hitch. It also usually has much higher quality than all the others (e.g. VK).