We also fixed ReplayTransaction when loading an asset; replay transactions only need to occur if the transaction was applied after the package event.
#jira UE-177465
#rb dominik.peacock
#preflight 646f871250786bb5ba85b1ef
[CL 25623286 by jason walter in ue5-main branch]
Adapting the ConcertServer to have a new delegate ParticipantCanJoinSession that will be executed (if bound) when a participant attempts to join a session. The participants ConcertEndpointId, ConcertClientInfo and the SessionId are passed along to a bound delegate function. This change supports custom MultiUser Apps.
#jira UCS-7344
#rb jason.walter, manuel.lang
#preflight 646f16bd6c2a2532b12cda31
[CL 25617184 by valentin ritzi in ue5-main branch]
