fixes #567 - Deprecate native shortcut code

MediaBrowser.Controller/IO/IFileSystem.cs

@@ -0,0 +1,45 @@
+using System.IO;
+
+namespace MediaBrowser.Controller.IO
+{
+    /// <summary>
+    /// Interface IFileSystem
+    /// </summary>
+    public interface IFileSystem
+    {
+        /// <summary>
+        /// Determines whether the specified filename is shortcut.
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        /// <returns><c>true</c> if the specified filename is shortcut; otherwise, <c>false</c>.</returns>
+        bool IsShortcut(string filename);
+
+        /// <summary>
+        /// Resolves the shortcut.
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        /// <returns>System.String.</returns>
+        string ResolveShortcut(string filename);
+
+        /// <summary>
+        /// Creates the shortcut.
+        /// </summary>
+        /// <param name="shortcutPath">The shortcut path.</param>
+        /// <param name="target">The target.</param>
+        void CreateShortcut(string shortcutPath, string target);
+
+        /// <summary>
+        /// Gets the file system info.
+        /// </summary>
+        /// <param name="path">The path.</param>
+        /// <returns>FileSystemInfo.</returns>
+        FileSystemInfo GetFileSystemInfo(string path);
+
+        /// <summary>
+        /// Gets the valid filename.
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        /// <returns>System.String.</returns>
+        string GetValidFilename(string filename);
+    }
+}