Use thermal conductivity on medium scale in HT/THM and TRM process
- adds the saturation to the EffectiveThermalConductivityPorosityMixing property
- changes access in local assembler of HT/THM and TRM to the medium propterty
- adds the medium proerty to benchmark files
- script for transferring project files can be found here: https://github.com/joergbuchwald/mini-projects/blob/master/tools/addEffectiveThermalConductivityPorosityMixing.py
- Feature description was added to the changelog
- Tests covering your feature were added?
- Any new feature or behavior change was documented?