Add options for settings and refresh menus

FloatingStatusWindowLibrary/IWindowSource.cs

@@ -7,5 +7,11 @@ namespace FloatingStatusWindowLibrary
         string Name { get; }
         string WindowSettings { get; set; }
         Icon Icon { get; }
+
+        bool HasSettingsMenu { get; }
+        bool HasRefreshMenu { get; }
+
+        void ShowSettings();
+        void Refresh();
     }
 }