Merge branch 'AlgebraicBcSettingForLinearSolver' into 'master'

...File/prj/processes/process/HEAT_TRANSPORT_BHE/t_linear.md

...rocesses/process/HEAT_TRANSPORT_BHE/t_use_algebraic_bc.md

...rocesses/process/HEAT_TRANSPORT_BHE/t_weighting_factor.md

MathLib/LinAlg/LinAlg.cpp

MathLib/LinAlg/LinAlg.h

NumLib/ODESolver/EquationSystem.h

NumLib/ODESolver/MatrixTranslator.cpp

NumLib/ODESolver/MatrixTranslator.h

NumLib/ODESolver/NonlinearSolver.cpp

NumLib/ODESolver/NonlinearSystem.h

NumLib/ODESolver/TimeDiscretizedODESystem.h

ProcessLib/HeatTransportBHE/BHE/BHECommon.h

.../HeatTransportBHE/BHE/CreateFlowAndTemperatureControl.cpp

ProcessLib/HeatTransportBHE/BHE/FlowAndTemperatureControl.h

...essLib/HeatTransportBHE/CreateHeatTransportBHEProcess.cpp

ProcessLib/HeatTransportBHE/HeatTransportBHEProcess.cpp

ProcessLib/HeatTransportBHE/HeatTransportBHEProcess.h

ProcessLib/HeatTransportBHE/HeatTransportBHEProcessData.h

.../LocalAssemblers/HeatTransportBHELocalAssemblerBHE-impl.h

...LocalAssemblers/HeatTransportBHELocalAssemblerSoil-impl.h