* index of the pressure has to equal the one of the main component
* advection law does not need outflow information
* fix some reference solutions

* not a valid combination

* these gridVolVars are free-flow specific

Feature/poroelasticity

See merge request !981

Some of the interfaces were designed such that they are in agreement
with the porous medium flow framework where we make them work for
both cell-centered as well as the box scheme. In the geomechanics
framework we now make use of the fact that cell-centered schemes are not
considered and use more FEM-like interfaces for the parameters required
for stress evaluations. This might enable us to rename/redefine these
interfaces to work with both FEM as well as Box. However, if
cell-centered schemes for geomechanics are to be implemented one day,
the whole structure would have to be overthought.

[newton] Add report function for statitics output

See merge request !975

Cleanup/indentations

See merge request !977

Feature/box elastic

See merge request !973

This way we can reuse code more easily for geomechanics

This commit will enable the geomechanics framework to not have to
state the number of phases in geomechanical model traits. Also, when
velocity output for the geomechanical models is implemented, we will
have to distinguish in the vtk output module anyway, as then we would
have to call numSolidPhases(). Outsourcing it directly to the velocity
output seems like an elegant solution.

Geomechanical models will not be able to reuse the vtk output module
otherwise.

Feature/solid state

Closes #409 and #453

See merge request !903

[solidsystem][spatialparams] Improve interface functions and adapt and clean all spatialparams/problems

Katharina Heck authored 6 years ago and Timo Koch committed 6 years ago

[cleanup] use temperatureFluid to make it more obvious which temperature is meant for thermal nonequilibrium