Allow to umount VFS.

RomRepoMgr.Core/Filesystem/Vfs.cs

@@ -1,7 +1,40 @@
+using System;
+using System.Threading.Tasks;
+
 namespace RomRepoMgr.Core.Filesystem
 {
-    public class Vfs
+    public class Vfs : IDisposable
     {
+        Fuse _fuse;
+
         public static bool IsAvailable => Winfsp.IsAvailable || Fuse.IsAvailable;
+
+        public void Dispose() => _fuse?.Dispose();
+
+        public event EventHandler<System.EventArgs> Umounted;
+
+        public void MountTo(string result)
+        {
+            if(Fuse.IsAvailable)
+            {
+                _fuse = new Fuse
+                {
+                    MountPoint = result
+                };
+
+                Task.Run(() =>
+                {
+                    _fuse.Start();
+
+                    Umounted?.Invoke(this, System.EventArgs.Empty);
+                });
+            }
+        }
+
+        public void Umount()
+        {
+            _fuse?.Umount();
+            _fuse = null;
+        }
     }
 }