ADD/StashFS: step-15: enable StashFileSource

src/filesources/ufilesourceutil.pas

@@ -375,7 +375,7 @@ begin
   begin
     if TFileSystemFileSource.ClassNameIs(FileSource.ClassName) then
       CurrentPath := aPath
-    else if fspLinksToLocalFiles in FileSource.Properties then
+    else
       AddFileSource(TFileSystemFileSource.GetFileSource, aPath);
   end;
 end;

src/platform/udefaultplugins.pas

@@ -81,6 +81,9 @@ implementation
 uses
   //Lazarus, Free-Pascal, etc.
   Forms, Dialogs,
+
+  // enable StashFileSource, don't remove
+  uStashFileSource,
   
   //DC
   {$IF DEFINED(CPU64)}