First pass at songs view

Using data grid for songs view. Added FileSystemUtil for async folder traversal

Aurora/Frontend/Models/Song.cs

@@ -0,0 +1,41 @@
+using System;
+
+namespace Aurora.Frontend.Views.Songs
+{
+    public class Song
+    {
+        public Song()
+        {
+        }
+
+        /// <summary>
+        /// The title of the song.
+        /// </summary>
+        /// <value></value>
+        public string Title { get; set; }
+
+        /// <summary>
+        /// The artist of the song.
+        /// </summary>
+        /// <value></value>
+        public string Artist { get; set; }
+
+        /// <summary>
+        /// The album from which the song belongs.
+        /// </summary>
+        /// <value></value>
+        public string Album { get; set; }
+
+        /// <summary>
+        /// The duration of the song.
+        /// </summary>
+        /// <value></value>
+        public string Duration { get; set; }
+
+        /// <summary>
+        /// Extra data associated with a song.
+        /// </summary>
+        /// <value></value>
+        public object Metadata { get; set; }
+    }
+}