multiple updates , use position instead of center, nexusformat notebook

[vedina]

xcalibration updates

• use position field from FitPeakResults (if available) , important for LaserZeroing
• set bound_centers_to_group=True] demo notebooks update
• xcalibration demo.ipynb
• nexusformat
• demo ploomber workflow

[github-actions[bot]]

Coverage report

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
src/ramanchada2/misc/types
fit_peaks_result.py
src/ramanchada2/protocols/calibration
calibration_component.py
calibration_model.py
xcalibration.py					83-95, 182, 466-468
src/ramanchada2/spectrum/peaks
fit_peaks.py
tests/protocols
test_calibrationmodel.py					147-148, 181, 196-198, 257
Project Total

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