erp5_workflow: add Interaction and InteractionWorkflow Property sheets here; the other workflowrelated property sheets can be found in bt/erp5_property_sheets.

erp5_workflow_test_data: revert the addition of suffix in live test isTransitionPossible due to the deployment of a new universal reference getter.

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.