Get testBusinessTemplate to work on CMF 2.2. Add a fake manage_addWorkflow method to portal_workflow, and switch to adding erp5_workflows instead of dc_workflows, which are much harder to add programatically on CMF 2.2

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@30750 20353a03-c40f-0410-a6d1-a30d3c3de9de