#552 Need lua function for returning the number of spawns in a spawn group.

Need lua function for returning the number of spawns in a spawn group.

This was resolved by using local groupList = GetGroup(Spawn) and using the #groupList sizing to determine the group size. We have to keep in mind spawns are only listed in group after they spawn, so initially on spawn will not be available, a timer, or in essence an lua function (enter_group for example) will have to be added. Or further on to address this in any other respect.