[updatemain] Updates from r20.0 ()

.gitlab-ci.yml

App/CMakeLists.txt

App/MessageHandler.cpp

App/MessageHandler.h

App/main.cpp

Base/Axis/CustomBinAxis.cpp

Base/Axis/FixedBinAxis.cpp

Base/Axis/VariableBinAxis.cpp

Base/Util/Assert.cpp

Base/Util/Assert.h

Device/Detector/IDetector.cpp

Device/Detector/RectangularDetector.cpp

Device/IO/DataFormatUtils.cpp

Device/IO/ReadWriteNumpyTXT.cpp

Device/Resolution/ConvolutionDetectorResolution.cpp

Device/Resolution/Convolve.cpp

Fit/Adapter/GeneticMinimizer.cpp

Fit/Adapter/MinimizerAdapter.cpp

Fit/Adapter/ResidualFunctionAdapter.cpp

Fit/Kernel/Minimizer.cpp