VoxelTales

Update 0.7.1

A big internal cleanup, nothing you'll notice while playing, but it sets a much cleaner foundation going forward.

• Registries are now proper singletons, managed by a new central Registry Manager that wires everything up in one place

• Static access still works as before, so nothing downstream broke

• Squashed several latent bugs that would've eventually caused headaches

• Added some comments to the weirder bits of code (future me will thank present me)