- merge patches from testERP5Simulation
- resurrect some solvers that were deleted by mistake
- configure PPL builder like SPL builder for specialise

Also remove expected broken test in testLegacyTradeModelLine

git-svn-id: https://svn.erp5.org/repos/public/erp5/sandbox/amount_generator@38111 20353a03-c40f-0410-a6d1-a30d3c3de9de