Use C++17 value template for traits

CHANGELOG.md

library/FieldUtils/Python/VtkWrapper.hpp

library/LibUtilities/BasicUtils/ArrayPolicies.hpp

library/LibUtilities/BasicUtils/CheckedCast.hpp

library/LibUtilities/BasicUtils/ParseUtils.cpp

library/LibUtilities/BasicUtils/ParseUtils.h

library/LibUtilities/BasicUtils/RealComparison.hpp

library/LibUtilities/BasicUtils/Vmath.hpp

library/LibUtilities/BasicUtils/VmathArray.hpp

library/LibUtilities/BasicUtils/VmathSIMD.hpp

library/LibUtilities/Communication/Comm.h

library/LibUtilities/LinearAlgebra/CanGetRawPtr.hpp

library/LibUtilities/LinearAlgebra/MatrixFuncs.h

library/LibUtilities/Python/BasicUtils/SharedArray.hpp

library/LibUtilities/SimdLib/allocator.hpp

library/LibUtilities/SimdLib/avx2.hpp

library/LibUtilities/SimdLib/avx512.hpp

library/LibUtilities/SimdLib/io.hpp

library/LibUtilities/SimdLib/scalar.hpp

library/LibUtilities/SimdLib/sse2.hpp