update include guards

Base/Axis/Bin.h

Base/Axis/ConstKBinAxis.h

Base/Axis/CustomBinAxis.h

Base/Axis/FixedBinAxis.h

Base/Axis/IAxis.h

Base/Axis/PointwiseAxis.h

Base/Axis/VariableBinAxis.h

Base/Pixel/IPixel.h

Base/Pixel/PolarizationHandler.h

Base/Pixel/SimulationElement.h

Base/Utils/PyEmbeddedUtils.h

Base/Utils/PyFmt.h

Base/Utils/ThreadInfo.h

Core/Scan/AngularSpecScan.h

Core/Scan/ISpecularScan.h

Core/Scan/QSpecScan.h

Core/Scan/SpecularSimulationElement.h

Core/Scan/UnitConverter1D.h

Device/Beam/Beam.h

Device/Beam/FootprintGauss.h