Fixed bug where husimi functions are plotted mirrored due to me messing up the order of the impulse values. Elevated husimi direction script to main level.

expanded on husimi direction plotting, but there still seems to be a bug concerning the indices of the husimi function

Added start outputdirectory but it doesn't really work, I'm still leaving it in so I can expand on it later.

Merge branch 'main' of gitlab.hrz.tu-chemnitz.de:rodt--tu-chemnitz.de/microcavity-farfield into main
This merge exists to pull the repository because phi_of_s.csv always says its modified, even though nothing has been done. After this merge the file won't be tracked anymore.
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Symmetry can now be passed to main as an argument + farfield is now saved in mode calculation script + many small changes

Now harminv grabs frequencies at correct location (outermost cavity, so even and uneven modes can be recorded).