Data model debug - Added semi support for lists

src/Artemis.Core/Services/Interfaces/IPluginService.cs

@@ -99,6 +99,11 @@ namespace Artemis.Core.Services.Interfaces
         /// </summary>
         event EventHandler<PluginEventArgs> PluginUnloaded;
 
+        /// <summary>
+        ///     Occurs when a plugin is being enabled
+        /// </summary>
+        event EventHandler<PluginEventArgs> PluginEnabling;
+
         /// <summary>
         ///     Occurs when a plugin has been enabled
         /// </summary>