Added method to calculate gain; Added plotter

[CatYang3]

Summary

Describe the main changes in this PR:

• Added a method to calculate gain value for the Madgwick filter
• Added a plotter to plot IMUDataFile
• Added calculated gain to IMUConfig
• Added i2c parameter name to IMUConfig to handle different i2c parameter names in Adafruit's libraries

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Code Quality Checklist

Before requesting review, ensure:

• All CI/CD pipelines pass
• Code includes docstrings and type hints
• I added new tests where necessary
• I ran make tree to update the README.md

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Additional Notes

• Anything else reviewers should know?
• Attach outputs, plots, logs, or GIFs here.

[CatYang3]

I accidently pushed the large file with recorded data with one of my last commits, that's why there's thousands of lines changed

[coveralls]

Pull Request Test Coverage Report for Build 20856451012

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 28 unchanged lines in 3 files lost coverage.
• Overall coverage increased (+2.5%) to 90.619%

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Files with Coverage Reduction	New Missed Lines	%
imu_python/wrapper.py	2	98.2%
imu_python/base_classes.py	7	91.35%
imu_python/sensor_manager.py	19	74.68%

Totals
Change from base Build 20366190227:	2.5%
Covered Lines:	512
Relevant Lines:	565

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💛 - Coveralls

[Tsmorz]

Please make these changes and then it's ready to go! Nice work :)