docs: complete XML documentation for all projects with inheritdoc tags

Co-authored-by: andrew-welker <1765622+andrew-welker@users.noreply.github.com>

src/PepperDash.Essentials.Core/Room/Config/EssentialsHuddleVtc1PropertiesConfig.cs

@@ -4,9 +4,15 @@ using Newtonsoft.Json;
 namespace PepperDash.Essentials.Room.Config
 {
 
+    /// <summary>
+    /// Represents a EssentialsHuddleVtc1PropertiesConfig
+    /// </summary>
     public class EssentialsHuddleVtc1PropertiesConfig : EssentialsConferenceRoomPropertiesConfig
     {
 		[JsonProperty("defaultDisplayKey")]
+  /// <summary>
+  /// Gets or sets the DefaultDisplayKey
+  /// </summary>
 		public string DefaultDisplayKey { get; set; }
 
     }