update plugin interfaces

MediaBrowser.Model/Plugins/IHasWebPages.cs

@@ -0,0 +1,9 @@
+using System.Collections.Generic;
+
+namespace MediaBrowser.Model.Plugins
+{
+    public interface IHasWebPages
+    {
+        IEnumerable<PluginPageInfo> GetPages();
+    }
+}

MediaBrowser.Model/Plugins/PluginPageInfo.cs

@@ -0,0 +1,9 @@
+namespace MediaBrowser.Model.Plugins
+{
+    public class PluginPageInfo
+    {
+        public string Name { get; set; }
+
+        public string EmbeddedResourcePath { get; set; }
+    }
+}