display ping when player joins lobby, closes #2124
adjust order latency dynamically by client ping, closes #2990
set dynamic order lag when client with highest latency leaves

hide Ping again from the players, write it to server.log instead
just make everything silently work to not discriminate clients
1 net tick is 120 ms and good order latency should be 2-3

color code names in lobby accordingly
Merge pull request #3000 from Mailaender/dynamic-orderlag

Display Ping of joining Clients in Lobby and use it to calculate OrderLatency