Convert final application to *.exe if possible

[nicholas512]

This might be a hurdle. Some possible resources:

https://pythonprogramming.net/converting-tkinter-to-exe-with-cx-freeze/
https://stackoverflow.com/questions/48299396/converting-tkinter-to-exe

[nicholas512]

pyinstaller seems to work, but can't find geos_c.dll, so it only works if Shapely is not imported.

pyinstaller/pyinstaller#2834

also, it can't find the horizonpy.quickhorizon module because it adds src/ to paths, so it looks in the toplevel src/horizonpy instead of src/horizonpy/horizonpy for quickhorizon. Could change the name of the top level folder

[nicholas512]

Shapely is known to not work with pyinstaller: shapely/shapely#831