Add ENet stubs

Source/Engine/Networking/Drivers/ENetDriver.h

@@ -0,0 +1,28 @@
+// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#include "Engine/Networking/Types.h"
+#include "Engine/Networking/INetworkDriver.h"
+
+#include "Engine/Networking/NetworkConnection.h"
+#include "Engine/Scripting/ScriptingType.h"
+
+API_CLASS(Namespace="FlaxEngine.Networking", Sealed) class FLAXENGINE_API ENetDriver : public INetworkDriver
+{
+DECLARE_SCRIPTING_TYPE_MINIMAL(ENetDriver);
+public:
+    void Initialize(const NetworkConfig& config) override;
+    void Dispose() override;
+    
+    bool Listen() override;
+    void Connect() override;
+    void Disconnect() override;
+    void Disconnect(const NetworkConnection& connection) override;
+
+    bool PopEvent(NetworkEvent* eventPtr) override;
+    
+    void SendMessage(NetworkChannelType channelType, const NetworkMessage& message, Array<NetworkConnection, HeapAllocation> targets) override;
+
+};
+