Refactor IPC services to have commands into separate classes, fix readme url

Ryujinx.Core/OsHle/IpcServices/Vi/IManagerDisplayService.cs

@@ -0,0 +1,33 @@
+using Ryujinx.Core.OsHle.Ipc;
+using System.Collections.Generic;
+
+namespace Ryujinx.Core.OsHle.IpcServices.Vi
+{
+    class IManagerDisplayService : IIpcService
+    {
+        private Dictionary<int, ServiceProcessRequest> m_Commands;
+
+        public IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
+
+        public IManagerDisplayService()
+        {
+            m_Commands = new Dictionary<int, ServiceProcessRequest>()
+            {
+                { 2010, CreateManagedLayer },
+                { 6000, AddToLayerStack    }
+            };
+        }
+
+        public static long CreateManagedLayer(ServiceCtx Context)
+        {
+            Context.ResponseData.Write(0L); //LayerId
+
+            return 0;
+        }
+
+        public static long AddToLayerStack(ServiceCtx Context)
+        {
+            return 0;
+        }
+    }
+}