nps
        - the flag is --random-seed

        - The state of the G4 random generator was never cleared
        - bigger and bigger data were written to the tree

        - at the beginning of each event, in the TTree
        - at the end of the simulation in a TAscii file

        - The elastic process could trigger to daughters particle in
        certain cases
        - This lead to an infinite chain of particle generation stopping
        the programm
        - Beam reaction now test the parent particle have trackID 0

        - this is within an effort to allow out of source build

Fixing conflict

        - AnyAboveThreshold returning true even if no decay allowed
        - Causing beam to try to decay repeatly in simulation

        - If the lifetime section contained a special caracter

        - now fully functional
        - fixed a bug in mugast annular anbalysis heritated from S1
        specific coincidences

        - Adding Reverse Map for simulation reshufle of strips
        - Fixing bug in TMugastPhysics causing Square geometry to be
        used for Trap and vis versa, depending on input file
        - Recenter of strip position around detector center in MugastPhy

        - Inversion of the argument in AddDetector Method leads a wrong
        position

  -Now, we give the e- kinetic energy corresponding to the v_drift and the d_pos to G4 in G4Ionization
& G4DETransport, then we let G4 manage the times
  -The mean free path is replaced by the safety
  -Current problems: it's not working with trans spread, and a "dirac" pic appear in time