Merge branch 'openmp-parallel-assembly' into 'master'

MaterialLib/MPL/Properties/Function.cpp

MaterialLib/MPL/Properties/Function.h

MeshLib/IO/MPI_IO/PropertyVectorMetaData.h

ParameterLib/FunctionParameter.h

ProcessLib/AbstractJacobianAssembler.h

ProcessLib/AnalyticalJacobianAssembler.cpp

ProcessLib/AnalyticalJacobianAssembler.h

ProcessLib/Assembly/MatrixAssemblyStats.h

ProcessLib/Assembly/MatrixElementCache.h

ProcessLib/Assembly/ParallelVectorMatrixAssembler.cpp

ProcessLib/Assembly/ParallelVectorMatrixAssembler.h

ProcessLib/AssemblyMixin.h

ProcessLib/CentralDifferencesJacobianAssembler.cpp

ProcessLib/CentralDifferencesJacobianAssembler.h

ProcessLib/CompareJacobiansJacobianAssembler.cpp

ProcessLib/CompareJacobiansJacobianAssembler.h

ProcessLib/ForwardDifferencesJacobianAssembler.cpp

ProcessLib/ForwardDifferencesJacobianAssembler.h

ProcessLib/Process.cpp

ProcessLib/Process.h