feat: removed crestron io devices

src/PepperDash.Essentials.Core/Crestron IO/IDigitalInput.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Crestron.SimplSharp;
+
+namespace PepperDash.Essentials.Core.CrestronIO
+{
+    /// <summary>
+    /// Represents a device that provides digital input
+    /// </summary>
+    public interface IDigitalInput
+    {
+        BoolFeedback InputStateFeedback { get; }
+    }
+}