- Delete the actual geometry
 - Clear the Detector Manager
 - Reload Geometry file

For this to work a couple of thing has been done:
 - InitializeRootInput now need an extra SetBranchAddress to tell the
   tree that the previous address is no longer in use
 - Scorer can not be cleared, so need to be retrieved in case of a
   reloading. If they do not exist they are created
 - This is done using the new CheckScorer static method from VDetector

* Advancing Tiara Barrel Simulation, now working (still to be tested
extensively)

* adding Dictionnary for VDetector class to avoid error message in root

* outputted incorrectly

* committed prototype

  it was giving linking errors in NPAnalysis
  + the main changes have been to declare the AddHisto1D and AddHisto2D
    methods in 'public' instead of 'private' in VSpectra.h
  + some cleaning for including headers in NPLib/T*Spectra.{h,cxx}

* introductiong VSpectra a template virtual class from which derived the
* TSpectra classes

* Fixing minor bug in NPBeam and NPReaction

* Detector are now put in alphabetical order

* Updating copyright
* adding AnnularS1Physics class

* Sharc scorer are now named SIlicon Scorer
* GeneralScorer moved to ObsoleteGeneralScorer
* The Obsolete Scorer are kept until all detector are move to the new
* syle of scorer

 - The header of the tree was written multiple time in certain case
 - The tree was appering twice, even everything was perfectly
   functionnal

  - A simple target rootlogon has been added to the makefile
  - The target call a script that add the need line to .rootlogon
  - if the file does not exist it is created

* The code compile and run but still need confirmation that it work as
* expected
* Modification does not affect the usual single differential way of
* working

* double deletion of histogramms by Root and the cause a seg fault when
* leaving cint

 - in rare case wrong time was assigned to the wrong energy for Silicon
* Cosmetic change un TMust2Physics for better code readbility

 - Similar mecanism to the CS system
 - Allow user to provide a random Ex distribution in txt or root file
   format
* Changing Display of Gaspard, Paris and Must2 detector for the GMAP_LOI preparation

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