Oplab-pipeline

- Sensors are initialised to None by default
- Removed unused covariance outputs for DR
- Standard deviation outputs in CSV
- Covariance CSVs for EKF
- Added tool to scale images
- Corrected bayer pattern bugs

- First public release
- Added changelog
- Changed CSV headers to lowercase
- Camera CSV files contain the relative path to the images from the dive folder
- Store memmaps from correct_images in the processed folder
- Added parser template at [auv_nav/parsers/parser_template.py](auv_nav/parsers/parser_template.py)
- Added documentation at [read the docs](oplab-pipeline.readthedocs.io).