refactor: rearrange and add solution for 4-series

src/PepperDash.Essentials.Core/Routing/ICardPortsDevice.cs

@@ -0,0 +1,20 @@
+//using System;
+//using System.Collections.Generic;
+//using System.Linq;
+//using System.Text;
+//using Crestron.SimplSharp;
+
+//using PepperDash.Core;
+
+//namespace PepperDash.Essentials.Core
+//{
+//    /// <summary>
+//    /// Defines a class that has cards, like a DM chassis controller, where
+//    /// we need to access ports on those cards
+//    /// </summary>
+//    public interface ICardPortsDevice : IKeyed
+//    {
+//        RoutingInputPort GetChildInputPort(string card, string port);
+//        RoutingOutputPort GetChildOutputPort(string card, string port);
+//    }
+//}