Include folders for folderish documents in Aspera downloads

The Aspera download is mostly working as expected but there is an inconsistent and unexpected behavior when attempting to download a mix of file documents and folderish documents.

First, If you select a folderish document that contains both files and other folderish documents and use aspera to download them it works as expected, getting all files and created subfolders as needed (see working 1,2,3 attachments)

To Reproduce:

• you will need a folderish document (referred to as the base below) that contains one or more file documents and also contains a folderish document (referred to as the subfolder below) which also contains file document(s)
• navigate to that base document and select all the contents
• initiate an Aspera download

  Expected Result

• the main binary for each file document should be in the destination
• a folder representing the subfolder
• inside the subfolder you should have the main binaries from the appropriate document(s)

  Actual Result

• the main binary for each file document is in the destination
• the subfolder and it's contents are missing

Tested with New release 2.0.4 of the Aspera feature