Closes #26. If specified SGD file isnt' found in User/sgd directory, we look in application/SGD directory for embedded resource file. Updates PD.Core to latest.

essentials-framework/Essentials Core/PepperDashEssentialsBase/Global/Global.cs

@@ -26,6 +26,17 @@ namespace PepperDash.Essentials.Core
         /// </summary>
         public static string FilePathPrefix { get; private set; }
 
+        /// <summary>
+        /// The file path prefix to the applciation directory
+        /// </summary>
+        public static string ApplicationDirectoryPathPrefix 
+        {
+            get
+            {
+                return Crestron.SimplSharp.CrestronIO.Directory.GetApplicationDirectory();
+            }
+        }
+
         /// <summary>
         /// Returns the directory separator character based on the running OS
         /// </summary>