update copyright statement to 2019

Simulation/ISF/ISF_FastCaloSim/ISF_FastCaloSimEvent/ISF_FastCaloSimEvent/TFCSFlatLateralShapeParametrization.h

 /*
-  Copyright (C) 2002-2018 CERN for the benefit of the ATLAS collaboration
+  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
 */
 
 #ifndef TFCSFlatLateralShapeParametrization_h

Simulation/ISF/ISF_FastCaloSim/ISF_FastCaloSimEvent/src/TFCSFlatLateralShapeParametrization.cxx

 /*
-  Copyright (C) 2002-2018 CERN for the benefit of the ATLAS collaboration
+  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
 */
 
 #include "CLHEP/Random/RandFlat.h"