Goalie change spam

[Hawk777]

When the operator changes the goalie using the spin buttons clicking with the mouse, the referee box will send packets with all the intermediate goalie indices as the operator reaches the final value. This will cause a lot of jitter as robots start moving towards, then stop and back away from, the goal, causing unnecessary wear and tear to teams’ robots. The referee box should wait until the goalie selector has not changed for one second before updating the packet with a new value.