Add/modify saturation plots
This merge request adds some changes to the saturation plot.
- Add a zoomed-in version of saturations starting from 5 seconds from refined lock loss.
- Add a vertical black dashed line where the lock loss is for clarity.
- Change plot filename from 'suspensions' to 'saturations'
- Fix a bug where plot wasn't centered to the refined gps time.
- Add verbosity to x-axis label
- Increase plot size to be able to see everything better.
After: