Adding variable HadronConeExclTruthLabelID to heavy-ion jet collections.

This is the standard reference for truth flavour info in b-tagging
studies, but had not been included in the heavy-ion jet reconstruction,
which is performed separately from that of other jet collections.

Reconstruction/HeavyIonRec/HIJetRec/python/HIJetRecTools.py

@@ -199,8 +199,8 @@ if jetFlags.useTracks():
     hi_modifiers += [jtm.trkmoms, jtm.jvf, jtm.jvt]
 #    hi_modifiers += [jtm.jvf, jtm.jvt, jtm.trkmoms]
 if jetFlags.useTruth():
-    hi_modifiers += [jtm.truthpartondr,jtm.partontruthlabel]
-    hi_trk_modifiers += [jtm.truthpartondr,jtm.partontruthlabel]
+    hi_modifiers += [jtm.truthpartondr,jtm.partontruthlabel,jtm.jetdrlabeler]
+    hi_trk_modifiers += [jtm.truthpartondr,jtm.partontruthlabel,jtm.jetdrlabeler]