Fix NetworkDictionary not working (#186)

NetworkDictionary was not marking the underlying NetworkBehaviour as dirty, and hence its changes were never processed.

Author: TheCaveOfWonders

com.community.netcode.extensions/Runtime/NetworkDictionary/NetworkDictionary.cs

@@ -474,9 +474,15 @@ public TValue this[TKey key]
         private void HandleAddDictionaryEvent(NetworkDictionaryEvent<TKey, TValue> dictionaryEvent)
         {
             m_DirtyEvents.Add(dictionaryEvent);
+            MarkNetworkObjectDirty();
             OnDictionaryChanged?.Invoke(dictionaryEvent);
         }
 
+        internal void MarkNetworkObjectDirty()
+        {
+            m_NetworkBehaviour.NetworkManager.MarkNetworkObjectDirty(m_NetworkBehaviour.NetworkObject);
+        }
+
         public override void Dispose()
         {
             m_Keys.Dispose();
@@ -547,4 +553,4 @@ public enum EventType : byte
     }
 }
 
-#endif
+#endif