Add winfsp library.

RomRepoMgr.Core/Filesystem/Winfsp.cs

@@ -0,0 +1,28 @@
+using System;
+using Fsp;
+
+namespace RomRepoMgr.Core.Filesystem
+{
+    public class Winfsp : FileSystemBase
+    {
+        public static bool IsAvailable
+        {
+            get
+            {
+                try
+                {
+                    Version winfspVersion = FileSystemHost.Version();
+
+                    if(winfspVersion == null)
+                        return false;
+
+                    return winfspVersion.Major == 1 && winfspVersion.Minor >= 7;
+                }
+                catch(Exception)
+                {
+                    return false;
+                }
+            }
+        }
+    }
+}