Adapting the ConcertSyncServer and the UnrealMultiUserServer configs and code to work with QuicMessaging as an alternative to UdpMessaging.
#jira UCS-7220
#rb jason.walter, manuel.lang
#review-26052126
[CL 26176638 by valentin ritzi in 5.3 branch]
- Fixed verbosity of Multi-User/DisasterRecover endpoint discovery by adding a new log category "LogConcertDebug" defaulting to "Warning" except for the Multi-User server which default to "Log" level. The category verbosity can be adjusted from the command line as: -LogCmds="LogConcertDebug Verbose" or from a console command as: log LogConcertDebug Verbose.
- Prevented Disaster Recovery client from discovering (and logging) all recovery services running.
#rb Francis.Hurteau
[CL 10467794 by Patrick Laflamme in Dev-VirtualProduction branch]
