Create a new ERP5Type/Workflow.py file to house all changes needed as we progressively remove DCWorkflow dependencies. For now it contains the non-patches part of patches/DCWorkflow.py and a conditional replacement for addWorkflowFactory() function that disappeared on CMF 2. Adjust other import locations to point to this function. Adjust ERP5Type product initialization to register Zope2-style factories for workflows registered with the substitute addWorkflowFactory when on CMF2 (approved by jm and jerome)

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@30010 20353a03-c40f-0410-a6d1-a30d3c3de9de