Void Damage

[RecursivePineapple]

Vanilla typically deals void damage 64 blocks below the world floor (y<-64 for y=0 build floor). We should add a configuration option to edit this.

[Cardinalstars]

Ahh shit yeah I forgot to add this when I added world height config. Probably shouldn't be too hard and we can just attach it to the world limits config or do you think we should have two different config options?