Test-time reflected event checker

Server UI components work with new system
Events for loading and unloading TorchSessions
Commands report information again.
Catch, log, and rethrow errors that occur in Torch-handled SE events

Torch.API/Session/ITorchSessionManager.cs

@@ -17,11 +17,27 @@ namespace Torch.API.Session
     /// <returns>The manager that will live in the session, or null if none.</returns>
     public delegate IManager SessionManagerFactoryDel(ITorchSession session);
 
+    /// <summary>
+    /// Fired when the given session has been completely loaded or is unloading.
+    /// </summary>
+    /// <param name="session">The session</param>
+    public delegate void TorchSessionLoadDel(ITorchSession session);
+
     /// <summary>
     /// Manages the creation and destruction of <see cref="ITorchSession"/> instances for each <see cref="Sandbox.Game.World.MySession"/> created by Space Engineers.
     /// </summary>
     public interface ITorchSessionManager : IManager
     {
+        /// <summary>
+        /// Fired when a <see cref="ITorchSession"/> has finished loading.
+        /// </summary>
+        event TorchSessionLoadDel SessionLoaded;
+
+        /// <summary>
+        /// Fired when a <see cref="ITorchSession"/> has begun unloading.
+        /// </summary>
+        event TorchSessionLoadDel SessionUnloading;
+
         /// <summary>
         /// The currently running session
         /// </summary>