Add network client ToString

Source/Engine/Networking/NetworkClient.cs

@@ -0,0 +1,15 @@
+// Copyright (c) 2012-2022 Wojciech Figat. All rights reserved.
+
+using System;
+
+namespace FlaxEngine.Networking
+{
+    partial class NetworkClient
+    {
+        /// <inheritdoc />
+        public override string ToString()
+        {
+            return $"NetworkClient Id={Connection.ConnectionId}";
+        }
+    }
+}

Source/Engine/Networking/NetworkClient.h

@@ -26,4 +26,10 @@ public:
     /// Client connection state.
     /// </summary>
     API_FIELD(ReadOnly) NetworkConnectionState State;
+
+public:
+    String ToString() const override
+    {
+        return String::Format(TEXT("NetworkClient Id={0}"), Connection.ConnectionId);
+    }
 };