Add Discord GameSDK.

Assets/Plugins/DiscordGameSDK/StorageManager.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Discord
+{
+    public partial class StorageManager
+    {
+        public IEnumerable<FileStat> Files()
+        {
+            var fileCount = Count();
+            var files = new List<FileStat>();
+            for (var i = 0; i < fileCount; i++)
+            {
+                files.Add(StatAt(i));
+            }
+            return files;
+        }
+    }
+}