- The Hit Level vector was not cleared at the begining of event

        - the t_level internal variable was not cleared at each event

        - Less read out code
        - Better memory management
        - Faster simulation

repository

! Adding a new folder TrackReconstruction for Tracking algorithm

* Fixing pile up in silicon scorers

        - Number of DE produce by ionisation is now fixed per mm
        - YIELD no longer used
        - DE track carry weight of the DE
        - DE scorer read out hte weight
        - Amplification also use weight and fixed amount of generated
          electron
This should insure smoother performance with regards to different setup

Note: no way to handle charge states, transmits fully stripped ions only.

Fixed bug in the strip number calculation due to the 'cyclic' nature of the detector and leading to false phi strip numbers in some cases

        - The initial condidition is filled is XYZ at emission plan, not
          interaction plan like before
        - The reaction and decay particle are no longer in the initial
          condition

sectors

* EventGeneratorMultipleParticle.cc

        - Image path was hardcoded for a specific machine
        - now use the $NPTOOL env
        - fixing case where rounding in coordinates lead to out of image
          pixel request

        - allow arbitrary geometry
        - can be used to simulate interstrip and dead layer
        - Use a base class NPImage to manage the image information
        - switch must2 to new scorers
        - fix must2 limitation to event with less particle than
          telescope (issue #17)

        - The Time of arrival of electron was too long
        - fixed the issue by skipping DETransport step going above
          geometrical safety

        - Fixing some bug in DE physics
        - Scorer for counting drift electron

        - Now use separate folder for scorer, event generator and
          physics