std::vector<std::size_t> _ids_of_active_elements.

for flexibility in coupling.

 VectorMatrixAssemble::assembleWithJacobian

Clang format run on near-the-header lines.

Happy New Year

 in creating of the instances of classes of coupled processes.

 from the two classes of coupled term.

[Coupling] Changed the members of the coupled term,

 which only contains the solutions of the coupled equations.

pointer to StaggeredCouplingTerm

 for the staggered scheme.

coupled terms.

[PCS] set the shape function order from config assuming all the primary variables use the same order