Notebook update with new transaction, SWU, and energy functions

[nsryan2]

This PR updates all of the analysis notebooks in this repository to standardize their approach and incorporate functions to reduce variance in analysis between scenarios.

The new functions introduced are:
fuel_transactions.py

1. fuel_received (fuel transactions for specific receivers)
2. fuel_sent (fuel transactions for specific senders)

waste.py

1. isotope_database (transaction information for each isotope given in each of the given commodities at a receiver)

products.py

1. energy_supply
2. squ_supply
   Both turn the sqlite and pandas manipulation each scenario was doing into a single function.

This PR also updates the CI status tag on the top-level README.md.

Closes #45

[pep8speaks]

Hello @nsryan2! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2024-07-26 15:42:00 UTC