[Direct Transfer] Allow to select folderish type

As a user, when I use Drive Direct Transfer, I can force the document type used for the documents created from the folders part of the transfer.

Under the “Advanced” section, A new control “Container/Folderish type”: with default value “Automatic” allows the user to choose among possible document types what document type will be used for the creation.

Acceptance criteria

• The proposed list of document types is dynamically built based on the selected target import path
• If no folder is selected in the import set, this option is greyed
• If no target import folder is selected yet, it is not possible to change the value of this control
• If the creatable document types list is empty, only the “automatic” value is displayed.

Bonus

• The latest transfer configuration is kept when doing a new transfer, including the document type selection. Yet, the system makes sure it is still part of the valid options, otherwise, it displays “automatic”.