if users want these, they can broadcast them themselves using Server::broadcastMessage(), which will also record the message in the server log like chat
closes#5669
there's a bunch of places we can't reach with this right now:
- particles
- sounds
- tile NBT
- entity metadata
- crafting data cache
- chunk encoding
- world block update encoding
this is a work in progress, but ultimately we want to get rid of these singletons entirely.
