Arvados

New operations using the collection service object based on replace_files API.

Use the file picker (with search/filter capability) for picking popup dialogs.

• Copy selected files or directories to an existing collection (was implemented previously, is presently commented out)
• Move selected files or directories to an existing collection
• Copy/move to existing collection should work when the source and destination collection are the same (i.e. within the same collection)
  • When opening a dialog to move or copy files to a collection, the dialog should start with the current collection selected.
• Move files or directories to a new collection (very similar UI to copying files to a new collection)
• Copy/move each selected item to its own separate collection