Add calamine as engine for reading Excel files

[euronion]

• Dramatically improves performances
• Get's rid of the openpyxl warning encountered in Dedicated us inputs scenarios #181 @finozzifa

Changes proposed in this Pull Request

Switch to calamine as excel reading engine for pandas.

Checklist

• Code changes are sufficiently documented; i.e. new functions contain docstrings and further explanations may be given in doc.
• Data source for new technologies is clearly stated.
• Newly introduced dependencies are added to environment.yaml (if applicable).
• A note for the release notes doc/release_notes.rst of the upcoming release is included.
• I consent to the release of this PR's code under the GPLv3 license.