[OPENENGSB-3137] make workflow-api independent of the rest of the poms
[OPENENGSB-3137] make workflow-api independent of the rest of the poms

openengsb/openengsb,openengsb/openengsb,openengsb/openengsb,openengsb/openengsb,openengsb/openengsb,openengsb/openengsb