Get block builder gamemode working again. Fix non background loaded textures not applying to material.
Only allow setting of Replicates on entity construction and before spawning
Fix movement replication for block builder player
Allow gamemodes to stall the loading screen
read/write voxel spawn data
Fix crash creating voxel map from serailized data
Serialize entity spawn data in world state as offset and length into binary blob
Allow client players to add blocks to voxel world