Queue join/leave notifications

[czho]

Is your feature request related to a problem? Please describe.

This feature shows when and who joins and leaves queue on 2b2t, kinda like the vanilla game join and leave messages.

Describe the solution you'd like

Make a listener for the SPacketTeams packet and interpret data from players joining and leaving.

Describe alternatives you've considered

N/A

Additional context

I have the code for this done in java, its probably going to have to be a plugin tho thats why its an issue not a pr. This could also be used to make a tab list for everyone in queue, because right when you join the server sends a packet with all the players that already are on the server, you could just make an array and just apend new players and remove leaving players.