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.

erp5_base: remove erp5_workflow_test_data from test_denpencies because it has been move to the dependencies of erp5_base.

erp5_workflow: move livetest script to erp5_workflow_test_data; move PoratlTypeRolesTemplateItem here.