Display Join Code (for crossplay) along with IP when server is started.

[saccogf]

Is your feature request related to a problem? Please describe.
My friends and I play on a crossplay server, so to connect we rely on the Playfab join code instead of IP. I can see the join code in the server in a message like this: "Session "Server name" with join code XXXXXX and IP XXX.XXX.XXX.XX:2456 is active with 0 player(s)"

Describe the solution you'd like
I would like to be able to display the join code along with the IP, preferably using a variable %JOINCODE% or similar

[vavavr00m]

Super useful because after the 1000th server restart, it gets tedious. There is already an existing mod that does this and still works with the Ashlands update - JoinCodeSender, however, it doesn't have the option to share the IP/port. Since IP/port is not displayed if crossplay is disabled, having either the Join Code and/or the IP/port share automatically to Discord would be great.

[nwesterhausen]

available in 2.2.2

may need to revisit to add another type of message that sends if the join code changes -- I'm not totally familiar with how the join codes work