[GaseousDetectorScorerers] time for each step is the mean of time at the begining and at the end of each step

[Epic] Preparation of the environement for the new GaseousDetectorScorers (energy loss per step of 25um)

Revert "Revert "Merge branch 'NPTool.2.dev' of https://gitlab.in2p3.fr/np/nptool into NPTool.2.dev""

This reverts commit a2a576ad.

This reverts commit 2907ec54, reversing
changes made to a5b50e27.

  progress)

  - For now only a copy of CalorimeterScorers
  - Adapted CMakeLists.txt

tracks using Stepping Action. 2) Add to the p2p reaction the possibility
for the heavy nucleus to decay using the ABLA deexcitation code included
  in G4.

        - The Interraction scorer was not cleared, making the angle
          wrong in the analysis

Several updates related to STRASSE and addition of a GAGG detector as well as several small improvement