Adding modification to Actar as well

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

Updating Scone, ChiNu and PISTA detectors

        - no longer issue error if the material is found
        - exit on error if the material is not found
        - properly write the DEDX tables

        - assuming proton reso is similar to MUST2, to be checked

energy

        - now can compute position of hit from CSV file