Introduce new scripts to calculate total debit / total credit on an accounting transaction using getMovementList, not SQL call, and use those scripts to show debit and credit on accounting module when debit/credit is not set on the brain, like it happens in list workflow dialog. Also remove the scripts that were previously used here only.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@25374 20353a03-c40f-0410-a6d1-a30d3c3de9de