Move (and copy) files on the OSF
move_files(from = NULL, to = NULL, filename = NULL, action = "move",
conflict = "replace")
OSF file id to move (osf.io/xxxx; just xxxx)
OSF id to move to (osf.io/xxxx; needs to be component)
Optional, rename the file
'move' or 'copy'
Keep old file or replace in case of conflict
Boolean, moving succeeded? (invisible)