Muller-eot

Package Maintenance
No change to package functionality

- Transition package distribution from setup.py to pyproject.toml
- Update Python version range to [reflect Python EOL](https://devguide.python.org/versions/): Python 3.10, 3.11, and 3.12
- Remove version requirements for `matplotlib` and `numpy` dependencies
- Update backend to make use [type hinting](https://docs.python.org/3/library/typing.html) and [f-strings](https://docs.python.org/3/tutorial/inputoutput.html)

Backend Functionality through EOT Class
- EOT Object for generating EOT difference and plotting graph

**Set default title for graph**

**Quickstart Guide**
- Example imgages

**showPlot -> show_plot**
- Update argument from camel-case to snake-case to match all arguments

- Python3.7 and Python3.9 capability
- README bug fixes

Bug fix to include the entire range of the orbital year (previously stopped at 364, fixed to 365 days)

New optional argument for the color of the scatter plot

plotEOT(fig_plot_color="C0")

calculateDifferenceEOTMinutes() returns a dictionary where keys are orbital days and values are the differences in EOT time

return calculateDifferenceEOTMinutes() == dict