update ClassDef version of Track and Particle

due to changes introduced in HeavyIonAnalysis#132

Author: lubynets

core/Particle.hpp

@@ -102,7 +102,7 @@ class Particle : public Track {
   PdgCode_t pid_{0};
   bool is_allowed_set_charge_and_mass_explicitly_{false};//!
 
-  ClassDefOverride(Particle, 2);
+  ClassDefOverride(Particle, 3);
 };
 
 }// namespace AnalysisTree

core/Track.hpp

@@ -164,7 +164,7 @@ class Track : public Container {
   Floating_t pz_{UndefValueFloat};///< z-component of track's momentum
   Integer_t charge_{-1000};
 
-  ClassDefOverride(Track, 2);
+  ClassDefOverride(Track, 3);
 };
 
 }// namespace AnalysisTree