fix examples

GUI/Model/FromCore/ItemizeSample.cpp

GUI/Model/ToCore/SampleToCore.cpp

GUI/View/Realspace/RealspaceBuilder.cpp

Sample/Interface/AutocorrelationModels.cpp

Sample/Interface/AutocorrelationModels.h

Sample/Interface/LayerRoughness.cpp

Sample/Multilayer/MultiLayer.cpp

Sample/StandardSample/FeNiBilayerBuilder.cpp

Sample/StandardSample/MagneticLayersBuilder.cpp

Sample/StandardSample/MultiLayerWithRoughnessBuilder.cpp

Sample/StandardSample/ResonatorBuilder.cpp

Sample/StandardSample/ThickAbsorptiveSampleBuilder.cpp

Tests/Unit/Sample/LayerRoughnessTest.cpp

Tests/Unit/Sample/MultiLayerTest.cpp

auto/Examples/fit/specular/Honeycomb_fit.py

auto/Examples/fit/specular/PolarizedSpinAsymmetry.py

auto/Examples/fit/specular/Pt_layer_fit.py

auto/Examples/fit/specular/TREFF_Ni_film.py

auto/Examples/scatter2d/CorrelatedRoughness.py

auto/Examples/scatter2d/FindPeaks.py