store a list of simulation movements to be solved instead of delivery movements in a Solver Decision document, that is more efficient and consistent with the way to find appropriate target solvers whose predicate's context is a simulation movement.
XXX now using 'delivery' category to store simulation movements does not sound good.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@36616 20353a03-c40f-0410-a6d1-a30d3c3de9de