TST: add a function to create a package fileset from its bento.info.
TST: add a function to create a package fileset from its bento.info.

cournape/Bento,cournape/Bento,abadger/Bento,abadger/Bento,abadger/Bento,abadger/Bento,cournape/Bento,cournape/Bento