- Updated Voxel Server to support non-res-in version of voxel distribution
- Updated agent data to allow client to send desired res-in and color state
- added menu items to client debug menu to toggle wantResIn and wantColor
- added VoxelNodeBag member to keep track of which nodes this agent needs to
have sent to it
- added _voxelPacket and other members to keep track of the next packet to
be sent to this client. This is because as we fill in packets to send we
may run out of room in the current packet, but not want to have to reencode
that data
- cleaned up constructors to use common init() method
