A rewritten NSFW module

Hi 📰 News, more specifically nsfw commands users

I have rewritten a good part of this module. The most important thing is that the bot will sends better quality images now, and will no longer send "spam images" (those that had ads added on the images, etc). There was also some gifs links that was not showing, it has been fixed, so you'll see more valid gifs.
Now the second important thing, that was asked for a while, I added more mans related commands, take a look at help nsfw to find all of them! 🍆