add sitemap generator which outputs all public pages and also includes an ISitemap interface for modules

Oqtane.Shared/Models/Sitemap.cs

@@ -0,0 +1,20 @@
+using System;
+
+namespace Oqtane.Models
+{
+    /// <summary>
+    /// Describes a Sitemap
+    /// </summary>
+    public class Sitemap
+    {
+        /// <summary>
+        /// Url
+        /// </summary>
+        public string Url { get; set; }
+
+        /// <summary>
+        /// Url
+        /// </summary>
+        public DateTime ModifiedOn { get; set; }
+    }
+}

Oqtane.Shared/Shared/Utilities.cs

@@ -143,6 +143,16 @@ namespace Oqtane.Shared
             return $"{alias?.BaseUrl}{url}";
         }
 
+        public static string AddUrlParameters(params object[] parameters)
+        {
+            var url = "";
+            for (var i = 0; i < parameters.Length; i++)
+            {
+                url += "/" + parameters[i].ToString();
+            }
+            return url;
+        }
+
         public static string FormatContent(string content, Alias alias, string operation)
         {
             var aliasUrl = (alias != null && !string.IsNullOrEmpty(alias.Path)) ? "/" + alias.Path : "";