Ignore unreachable safety code in coverage

src/analysis/CubeGaussQuadrature.cpp

src/analysis/PrismGaussQuadrature.cpp

src/analysis/PyramidGaussQuadrature.cpp

src/analysis/SquareGaussQuadrature.cpp

src/analysis/TetrahedronGaussQuadrature.cpp

src/analysis/TriangleGaussQuadrature.cpp