Camfi

- Added option to merge multiple via projects
- Better error handling of projects with corrupted image files
- If manual annotations go out of cropped image bounds, they are now snapped to the crop bounds for training
- `BoundingBox.from_shape` indices have been reduced by one
- New model has been trained on much bigger dataset "v2.1.4"

Includes major bugfixes for training, annotation and validation of camfi automatic annotation models, and a new (better) version of the model.

Documentation has also been revamped.

Camfi is now fully documented, and is now using python3.9 style type hints.

- Complete refactor
- New API
- New CLI
- Better documentation
- Compatible with v1 models

Fixed a bug which caused traincamfiannotator to occasionally crash

Mostly bug fixes