moved event API stuff around

finally fixed threading issue (which actually had to do with IW4x log outputs being out of sync (not an issue with my code). What a lot of headache over something that wasn't my fault.

SharedLibraryCore/Interfaces/IEventHandler.cs

@@ -13,6 +13,6 @@ namespace SharedLibraryCore.Interfaces
         /// Add a game event event to the queue to be processed
         /// </summary>
         /// <param name="gameEvent">Game event</param>
-        void AddEvent(GameEvent gameEvent);
+        bool AddEvent(GameEvent gameEvent);
     }
 }