Updated version after peer review

This version contains additional analysis and features which had been requested during the peer review of the preprint. See here: https://egusphere.copernicus.org/preprints/2024/egusphere-2024-3094/#discussion

Final version for submission

Merge pull request #55 from florianjehn/main

Update utils.py

Feature complete

This releases contains the first feature complete version of pytradeshifts. We might add additional functionalities in the future, but this contains all that was originally planned for.