Update tank_design to include constants minor fixes

tank_design/CMakeLists.txt

tank_design/src/datapostprocessing.py

...ll_functions/_00_readenergycarrierandtankconfiguration.py

...rlin/general/call_functions/_01_checktankconfiguration.py

...rlin/general/call_functions/_02_preparegeometricaldata.py

...rical/tank_design_tu_berlin/general/tankdesigntuberlin.py

...mpirical/tank_design_tu_berlin/kerosene/calculatetanks.py

...mpirical/tank_design_tu_berlin/kerosene/methodkerosene.py

...irical/tank_design_tu_berlin/usermethoddatapreparation.py

tank_design/tank_design_conf.xml