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/Config/ILoadConfig.cs

@@ -6,6 +6,9 @@ using System.Threading.Tasks;
 
 namespace PepperDash.Essentials.Core
 {
+    /// <summary>
+    /// Defines the contract for ILoadConfig
+    /// </summary>
     public interface ILoadConfig
     {
         void GoWithLoad();