Add more variations of farts, burps and screams

[Natsumehack]

Isaac Kirkhope farts violently! Oh christ!!
Unknown screams so hard he can be heard in space!
Dume Captin burps up a tiny bit of vomit. Gross.

The sound-based emotes are getting a bit stale so I think it's about time we added some fresh ones

Pubbie Jones looks like they trying scream but you hear nothing,It looks like it's true what they say.