Moved event stuff to a non-manager NS.

Core assembly concept: Assemblies that will never need to get unloaded (Torch.API, Torch, Torch.Server)
Event shims and patch shims on the core assemblies.

Torch.API/Event/IEventHandler.cs

@@ -0,0 +1,9 @@
+namespace Torch.API.Event
+{
+    /// <summary>
+    /// Interface used to tag an event handler.  This does <b>not</b> register it with the event manager.
+    /// </summary>
+    public interface IEventHandler
+    {
+    }
+}