Update frozen shower generation scripts and code to be compatible with recent developments

LArCalorimeter/LArG4/LArG4FastSimulation/src/LArFastShower.cxx

 /*
   Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
 */
 
 #include "LArFastShower.h"
@@ -40,5+40,5 @@
   m_starting_points_file(),
   m_eventNum(0)
 {
+
+  // Check if the file name is not empt
+
+  if ( ! m_configuration.m_generated_starting_points_file.empty())
+    {
+        m_generate_starting_points = true;
+        m_starting_points_file = new HepMC::IO_GenEvent(m_configuration.m_generated_starting_points_file.c_str(),std::ios::out);
+    }
+
   enum DETECTOR { EMB=100000, EMEC=200000, FCAL1=300000, FCAL2=400000,
                   FCAL3=500000, HECLOC=600000, HEC=700000 };
 

[Magdalena Slawinska]

Please update the date in the copyright statement.