P-152: Virtual World Concept Update 121: Multiplayer Support

I have added multiplayer support to the spherical terrain project.

This actually turned out to be easier than I thought, most of the code was completely multiplayer safe anyway, I just needed to make some minor changes to pack/unpack update and everything seemed to work ok.

I have multiplayer collision working, and as can be seen from the below images, the terrain looks identical from the perspectives of each player, which means I don’t have to do any work with the guts of the code at all. I was concerned that I would have to work with sychronising seed values, etc, this seems not to be necessary.