Melanie Lipp authored 6 years ago and Dennis Gläser committed 6 years ago

With contributions of Farid Mohammadi <farid.mohammadi@iws.uni-stuttgart.de>.

* Do not pass base class as template parameter for compositional
  localRes and fluxVars

* instead pass base class as template parameter for rans localRes
  and fluxVars

Thanks to Kilian for contributing the actual change of all the test's spatial params!

What was broken:
The test used philtophob law which used the wrong residual saturations. It went into efftoabslaw with
the non-wetting saturation so swr and snr where the wrong way around. It also overwrote the krw/krn function
of the material law in use with a quadratic/cubic law. It also defined the capillary pressure negative but then
it would be pc = pw-pn.

What was fixed:
Use the wettingPhase function instead to make the gas phase the wetting phase

This changed:
- the pw solution as swr and snr were corrected (the wrong way around pw was equal)
- the pc solution because it is now positite
- the mobilities as they didn't use the real van genuchten curves

* add test
* add PDELab solution for comparison
* speed-up by avoid calling getparam
* improve determination of the gradient
* increase verbosity for comparison