Move MFTSearch to find file plugin.

Plugins/Wox.Plugin.FindFile/MFTSearch/USNRecord.cs

@@ -0,0 +1,33 @@
+using System;
+
+namespace Wox.Infrastructure.MFTSearch
+{
+    public class USNRecord
+    {
+
+        public string Name { get; set; }
+        public ulong FRN { get; set; }
+        public UInt64 ParentFrn { get; set; }
+        public string FullPath { get; set; }
+        public bool IsVolumeRoot { get; set; }
+        public bool IsFolder { get; set; }
+        public string VolumeName { get; set; }
+
+        public override string ToString()
+        {
+            return string.IsNullOrEmpty(FullPath) ? Name : FullPath;
+        }
+
+        public static USNRecord ParseUSN(string volume, PInvokeWin32.USN_RECORD usn)
+        {
+            return new USNRecord
+            {
+                FRN = usn.FRN,
+                Name = usn.FileName,
+                ParentFrn = usn.ParentFRN,
+                IsFolder = usn.IsFolder,
+                VolumeName = volume
+            };
+        }
+    }
+}