Implement update loader and log loaded application info (#1023)

* Implement update loader

* Add title version to titlebar and log loaded application info

* nits

* requested changes

Ryujinx.Common/Configuration/TitleUpdateMetadata.cs

@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+
+namespace Ryujinx.Common.Configuration
+{
+    public struct TitleUpdateMetadata
+    {
+        public string       Selected { get; set; }
+        public List<string> Paths    { get; set; }
+    }
+}