Include liquidMolarDensity in component LNAPL
We introduced liquidMolarDensity and gasMolarDensity in all components in !498 (merged). For the component LNAPL we did not know what the molarDensity is, since it does not have a molarMass.
- look up molar mass for some kind of oil that fits here
- implement liquidMolarDensity according to !498 (merged)