Look into adding custom packets

[CamoRF]

Look into adding a custom packet + packet handler so reconstructor can start sending custom data to other modded clients. This would open up the door to a lot more features.

Since the game stores packet definitions in fixed size static arrays it'll probably be a pain to try making the array bigger. Instead we can try looking for an existing packet definition that isn't used an abuse it. Can stick an enum at the start of the packet struct and use that to differentiate. There's a packet labelled "bull_taco space filler" that seems to do nothing.