adding the set function to update boundary node concentration values.
set concentrations
clean mat_vprime after usage.
Merge branch 'react_trans_GIA' of github.com:HaibingShao/ogs into react_trans_GIA
a second choice of using LIS solver.
move the minimization solver to the destructor.
Merge branch 'react_trans_GIA' of github.com:HaibingShao/ogs into react_trans_GIA