GitLab

  - Added grid-based parameter initilization, to avoid getting stuck in local minima
  - This means looping, but with a max of ~15s for each iteration, it's not too terrible

        - std:: was missing in front of vector

 -- Now use FitResult mean & std dev for minimization, giving more accurate results
 -- Also improved the visual outputs a little

 -- Implemented FitResultPtr in the header
 -- Still need to correct main code for this now
 -- Pushing now in case I completely trash everything

 -- NOTE: GetMean() and GetStdDev() return values inconsistent with the fitting protocol.
 -- Next update will implement TFitResultPtr to rectify this

        - fixing unit of velocity in NPParticle

 * Thickness wasn't being properly varied

New minimiser code didn't include EnergyLoss in Al, now recitified

        - The NPMULTITHREADING flag is now pass to rootcint when
          building the dictionnaries
        - This is done by generating the macro via cmake

 - Now using ROOT::Math minimizer.
 - Requires ROOT's minuit2 build flag to be on.