fireEvent + graflow uses new-style fireEvent

graflow_examples/test3.html

@@ -56,10 +56,10 @@
                 grflw2.setAttribute('tension', document.querySelector('input[data-id="eic"]').value)
                 grflw2.setAttribute('align', document.querySelector('select[name="align"]').value)
                 grflw2.setAttribute('wiretype', document.querySelector('select[name="wiretype"]').value)                  
-                grflw2.addEventListener('subflowLoaded',
+                grflw2.addEventListener('bz:graflow:subflowLoaded',
                     (evt) => { grflw2 = evt.detail.subflow }
                 )
-                grflw2.addEventListener('subflowExited',
+                grflw2.addEventListener('bz:graflow:subflowExited',
                     (evt) => { grflw2 = evt.target }
                 )
                 document.querySelector('[data-trigger="onAutoplace2H"]').addEventListener('click',