Added PlaceVolumeAction for undoable/redoable volume placement
Added RemoveEntityAction for undoable/redoable removal of entities
Add EditorEntityLibraryAttribute.VolumeMaterial and IsVolume
Update place_block.vmat to use TintColor instead of GhostColor
Update sbox-voxels submodule
Update LobbyState to only wait for VoxelWorld to initialize, not for spawnpoints and prevent task cancelled exception
Update MoveToSpawnpoint to handle PlayerSpawnpoint entities added to voxel worlds
Setup collisions with AABB for PlayerSpawnpoint but only when in editor mode
Added BaseTrigger and KillTrigger which implement ISourceEntity and IVolumeEntity for use with voxel worlds
Added VolumeEntity render entity type to display in editor mode
Can now place and remove volumes such as triggers for voxel worlds
Merge branch 'main' of sbox-corewars