Added some more plugin architecture (modules are now a type of plugin)

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

@@ -0,0 +1,16 @@
+using System;
+using System.Threading.Tasks;
+using Artemis.Core.Events;
+using Artemis.Plugins.Interfaces;
+
+namespace Artemis.Core.Services.Interfaces
+{
+    public interface IPluginService : IArtemisService, IDisposable
+    {
+        Task LoadModules();
+        Task ReloadModule(IPlugin plugin);
+
+        event EventHandler<ModuleEventArgs> ModuleLoaded;
+        event EventHandler<ModuleEventArgs> ModuleReloaded;
+    }
+}