Packet corresponds to this client function call:
/**
* This function is called to create the call part of the player entity.
* The data on the stream contains only properties provided by the cell.
*
* @param id entity id.
* @param spaceID id of space where to create the entity in.
* @param vehicleID id of an entity to use as vehicle.
* @param position position of entity.
* @param yaw yaw of entity.
* @param pitch pitch of entity.
* @param roll roll of entity.
* @param data entity's data.
*/
void EntityManager::onCellPlayerCreate( EntityID id,
SpaceID spaceID, EntityID vehicleID, const Position3D & position,
float yaw, float pitch, float roll, BinaryIStream & data )