Meggie-fooof

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- nothing changed yet

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- Add tests
- Update channel average logic to first average over spectrums and then fit
- Replace timestamped output folder with user-selectable destination for csv's
- Upgrade to work with meggie 1.9.0
- Migrate to pyproject.toml

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- Add tests
- Add github workflow
- Update plugin and action metadata

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- Add channel average plots
- Add channel average save csv
- Add goodness-of-fit information to save csv

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- matplotlib deprecated fig.canvas.set_window_title

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- Fix dependency to Meggie>=1.3.0