Added support for per site options and OpenID Connect

Oqtane.Shared/Shared/Constants.cs

@@ -85,5 +85,8 @@ namespace Oqtane.Shared {
         public static readonly string AntiForgeryTokenCookieName = "X-XSRF-TOKEN-COOKIE";
 
         public static readonly string DefaultVisitorFilter = "bot,crawler,slurp,spider,(none),??";
+
+        public static readonly string HttpContextAliasKey = "SiteState.Alias";
+        public static readonly string SiteToken = "{SiteToken}";
     }
 }

Oqtane.Shared/Shared/SiteState.cs

@@ -2,7 +2,7 @@ using Oqtane.Models;
 
 namespace Oqtane.Shared
 {
-    // this class is used for passing state between components and services, or controllers and repositories
+    // this class is used for passing state between components and services as well as controllers and repositories
     public class SiteState
     {
         public Alias Alias { get; set; }