[Par5] further use of validate ()

Sample/Aggregate/IInterference.cpp

Sample/Aggregate/Interference1DLattice.cpp

Sample/Aggregate/Interference1DLattice.h

Sample/Aggregate/Interference2DParaCrystal.cpp

Sample/Aggregate/Interference2DParaCrystal.h

Sample/Aggregate/InterferenceHardDisk.cpp

Sample/Aggregate/InterferenceHardDisk.h

Sample/Aggregate/InterferenceRadialParaCrystal.cpp

Sample/Aggregate/InterferenceRadialParaCrystal.h

Sample/Aggregate/InterferenceTwin.cpp

Sample/Aggregate/InterferenceTwin.h

Sample/Multilayer/MultiLayer.cpp

auto/Wrap/doxygenSample.i

auto/Wrap/libBornAgainSample.py

auto/Wrap/libBornAgainSample_wrap.cpp