If we leave PaymentSimulationRule as it is now, 2 Trade Model Path must be
created (for bank and payable), instead of 1.
Reenable payment rule in tests.

git-svn-id: https://svn.erp5.org/repos/public/erp5/sandbox/amount_generator@37612 20353a03-c40f-0410-a6d1-a30d3c3de9de