Add system to kick people if they connect to multiple servers at once. (#34563)

Content.Server/Entry/EntryPoint.cs

@@ -152,6 +152,7 @@ namespace Content.Server.Entry
                 IoCManager.Resolve<IEntitySystemManager>().GetEntitySystem<GameTicker>().PostInitialize();
                 IoCManager.Resolve<IBanManager>().Initialize();
                 IoCManager.Resolve<IConnectionManager>().PostInit();
+                IoCManager.Resolve<MultiServerKickManager>().Initialize();
             }
         }