[WIP] Add support for events (#60)

* Add support for events, move concept of domains to IpcService

* Support waiting for KThread, remove some test code, other tweaks

* Use move handle on NIFM since I can't test that now, it's better to leave it how it was

Ryujinx.Core/OsHle/Handles/KSession.cs

@@ -0,0 +1,28 @@
+using Ryujinx.Core.OsHle.IpcServices;
+using System;
+
+namespace Ryujinx.Core.OsHle.Handles
+{
+    class KSession : IDisposable
+    {
+        public IpcService Service { get; private set; }
+
+        public KSession(IpcService Service)
+        {
+            this.Service = Service;
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+
+        protected virtual void Dispose(bool Disposing)
+        {
+            if (Disposing && Service is IDisposable DisposableService)
+            {
+                DisposableService.Dispose();
+            }
+        }
+    }
+}