Updated class names to not use VC abbreviation. Defined additional interfaces

Essentials Core/PepperDashEssentialsBase/Devices/IHasSharing.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Crestron.SimplSharp;
+
+namespace PepperDash.Essentials.Core
+{
+    public interface IHasSharing
+    {
+
+        BoolFeedback SharingSourceFeedback { get; }
+    }
+}