testERP5NamingConvention.py: add erp5_workflow_test_data to the test; remove old erp5_workflow template from the tests since teh structure of workflow has been changed.

pathces/Expression.py: repare state_change_information script list structure; apply universal method getReference to replace getId.

erp5_workflow_test_data: remove 2 unused workflow from workflow_module; add test_group for test; improve live test.