implement client server connection tracking persistence

SharedLibraryCore/Interfaces/IClientMeta.cs

@@ -26,6 +26,7 @@ namespace SharedLibraryCore.Interfaces
         ChatMessage,
         Penalized,
         ReceivedPenalty,
-        QuickMessage
+        QuickMessage,
+        ConnectionHistory
     }
 }

SharedLibraryCore/Interfaces/IClientMetaResponse.cs

@@ -7,6 +7,6 @@ namespace SharedLibraryCore.Interfaces
     public interface IClientMetaResponse
     {
         int ClientId { get;}
-        int MetaId { get; }
+        long MetaId { get; }
     }
 }

SharedLibraryCore/Interfaces/IEventPublisher.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace SharedLibraryCore.Interfaces
+{
+    public interface IEventPublisher
+    {
+        event EventHandler<GameEvent> OnClientDisconnect;
+        event EventHandler<GameEvent> OnClientConnect;
+
+        void Publish(GameEvent gameEvent);
+    }
+}