Fix skipping events with HepMC and add hepmc to evnt converter

Generators/ForeseeGenerator/share/convert_hepmc_to_evnt.py

@@ -54,7 +54,7 @@ if __name__ == "__main__":
     from McEventSelector.McEventSelectorConfig import McEventSelectorCfg
     cfg.merge(McEventSelectorCfg(ConfigFlags))    
 
-    itemList = [ "McEventCollection#*" ]
+    itemList = [ "EventInfo#McEventInfo", "McEventCollection#*" ]
     from OutputStreamAthenaPool.OutputStreamConfig import OutputStreamCfg
     cfg.merge(OutputStreamCfg(ConfigFlags, "EVNT", itemList, disableEventTag = True))