Add option to disable deprecated legacy authorization options (#13306)

MediaBrowser.Model/Configuration/ServerConfiguration.cs

@@ -276,4 +276,9 @@ public class ServerConfiguration : BaseApplicationConfiguration
     /// </summary>
     /// <value>The trickplay options.</value>
     public TrickplayOptions TrickplayOptions { get; set; } = new TrickplayOptions();
+
+    /// <summary>
+    /// Gets or sets a value indicating whether old authorization methods are allowed.
+    /// </summary>
+    public bool EnableLegacyAuthorization { get; set; } = true;
 }