Fix filesystem refs

Config/ConfigUtils.vb

@@ -1,15 +1,16 @@
-Imports DigitalData.Modules.Logging
+Imports DigitalData.Modules.Base
+Imports DigitalData.Modules.Logging
 
 Public Class ConfigUtils
     Private _Logger As Logger
-    Private _File As Filesystem.File
+    Private _File As FilesystemEx
 
     Private Const MIGRATE_DIRECTORY As String = "Migrate"
 
 
     Public Sub New(LogConfig As LogConfig)
         _Logger = LogConfig.GetLogger()
-        _File = New Filesystem.File(LogConfig)
+        _File = New FilesystemEx(LogConfig)
     End Sub
 
     Public Function TestMigrationNeeded(TargetDirectory As String) As Boolean