Use default member initializer.

MeshLib/Vtk/VtkMeshNodalCoordinatesTemplate.h

NumLib/Fem/Integration/IntegrationGaussLegendrePrism.h

NumLib/Fem/Integration/IntegrationGaussLegendrePyramid.h

NumLib/Fem/Integration/IntegrationGaussLegendreRegular.h

NumLib/Fem/Integration/IntegrationGaussLegendreTet.h

NumLib/Fem/Integration/IntegrationGaussLegendreTri.h

ProcessLib/ComponentTransport/ComponentTransportFEM.h

ProcessLib/HT/HTLocalAssemblerInterface.h

Tests/GeoLib/TestPolygon.cpp

Tests/GeoLib/TestSimplePolygonTree.cpp

Tests/MeshLib/MeshProperties.cpp

Tests/MeshLib/TestBoundaryElementSearch.cpp

Tests/MeshLib/TestLineMesh.cpp

Tests/MeshLib/TestMeshNodeSearch.cpp

Tests/MeshLib/TestQuadMesh.cpp

Tests/MeshLib/TestTriLineMesh.cpp

Tests/MeshLib/TestVtkMappedMeshSource.cpp

Tests/NumLib/TestDistribution.cpp

Tests/NumLib/TestMeshComponentMap.cpp