lowtran

Use pyproject.toml alone. f2py builds on first use of import lowtran function e.g. lowtran.check() or pytest or similar. Patched to work again on Windows with Python >= 3.8.

implementing best practices

Wavelength step is a key factor in computation time. Allowing end user to easily input step size. Default is 20 cm^-1, which is the minimum (smallest) step size suggested in the Lowtran manual.

Also modularized code for better code practice.

setup.py => setup.cfg
general cleanup of console_scripts and CI tests

pep8, mypy type checking adherence. Improve builds with different compilers

Increase simple OOP Lowtran interface by adding

• standard lowtran horizontal model
• user-defined atmosphere parameters (temperature, pressure, composition)

increased plain Fortran test coverage

Cleanup API so that all data is passed out via xarray.Dataset

If a dimension is unused (time, wavelength, angle) use .squeeze() to prune off the length-1 dimension(s).