[StyleCop] Wox.Plugin - last amount needed to fully integrate (#5853)

* StyleCop for Plugin

* getting release mode working

src/modules/launcher/Wox.Plugin/IFeatures.cs

@@ -0,0 +1,34 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Collections.Generic;
+
+namespace Wox.Plugin
+{
+    public interface IFeatures
+    {
+    }
+
+    public interface IContextMenu : IFeatures
+    {
+        List<ContextMenuResult> LoadContextMenus(Result selectedResult);
+    }
+
+    /// <summary>
+    /// Represent plugins that support internationalization
+    /// </summary>
+    public interface IPluginI18n : IFeatures
+    {
+        string GetTranslatedPluginTitle();
+
+        string GetTranslatedPluginDescription();
+    }
+
+    public interface IResultUpdated : IFeatures
+    {
+        event ResultUpdatedEventHandler ResultsUpdated;
+    }
+
+    public delegate void ResultUpdatedEventHandler(IResultUpdated sender, ResultUpdatedEventArgs e);
+}