* change NPSimulation structure to allow conditional compilation

   + geant4 files are kept in the include and src directories
   + one directory is created for each detector. This directory
     contains the associated headers and sources files
   + a script directory is created with some scripts allowing the
     conditional compilation

 * Add #ifdef statements in DetectorConstruction.cc file
   + this applies to each detector header

 * Move G4MultiFunctionnalDetector.hh header from Sharc.cc to 
   Sharc.hh

Inputs/EventGenerator/12Cppa.reaction

+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%% Reaction file for 11Li(d,3He)10He reaction %%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%Beam energy given in MeV ; Excitation in MeV
+Beam
+  Particle= 1H
+  Energy= 18
+  SigmaEnergy= 0
+  SigmaThetaX= 0
+  SigmaPhiY= 0
+  SigmaX= 0
+  SigmaY= 0
+  MeanThetaX= 0
+  MeanPhiY= 0
+  MeanX= 0
+  MeanY= 0
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+TwoBodyReaction
+	Beam= 1H
+	Target= 12C
+	Light= 1H
+	Heavy= 12C
+	ExcitationEnergyLight= 0.0
+	ExcitationEnergyHeavy= 12.7
+	CrossSectionPath= flat.txt CS
+	ShootLight= 1
+	ShootHeavy= 1
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ParticleDecay 12C
+  Daughter= 4He 4He 4He
+  ExcitationEnergy= 0 0 0
+  shoot= 1 1 1

Inputs/EventGenerator/Angel.reaction

+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%% Reaction file for 11Li(d,3He)10He reaction %%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Beam energy given in MeV ; Excitation in MeV ; SigmaXY in mm
+%  SigmaThetaX/PhiY in deg
+Transfert
+	Beam= 5He
+	Target= 208Pb
+	Light= 5He
+	Heavy= 208Pb
+	ExcitationEnergyLight= 0.0
+	ExcitationEnergyHeavy= 0.0
+	BeamEnergy= 22
+	BeamEnergySpread= 10
+	SigmaThetaX= 0
+	SigmaPhiY= 0
+	SigmaX= 0
+	SigmaY= 0
+	CrossSectionPath= flat.txt
+	ShootLight= 1
+	ShootHeavy= 0
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%