docs: update XML comments for Essentials Core

src/PepperDash.Essentials.Core/CrestronIO/ISwitchedOutput.cs

@@ -13,14 +13,30 @@ namespace PepperDash.Essentials.Core.CrestronIO
     /// </summary>
     public interface ISwitchedOutput
     {
+        /// <summary>
+        /// Feedback to indicate whether the output is on
+        /// </summary>
         BoolFeedback OutputIsOnFeedback {get;}
 
+        /// <summary>
+        /// Turns the output on
+        /// </summary>
         void On();
+
+        /// <summary>
+        /// Turns the output off
+        /// </summary>
         void Off();
     }
 
+    /// <summary>
+    /// Describes a collection of switched outputs
+    /// </summary>
     public interface ISwitchedOutputCollection
     {
+        /// <summary>
+        /// Dictionary of switched outputs by their port number
+        /// </summary>
         Dictionary<uint, ISwitchedOutput> SwitchedOutputs { get; }
     }
 }