Wsiprocess

- Work with custom function for foreground estimation.
- Foreground class can be extracted from command line.

- FIxed find_bbs to find all the bounding boxes meeting the conditions.
- Dockerfile updated to run wsiprocess in a docker container.
- annotation.Annotation.make_foreground_mask can take custom thresholding functions.
- Examples in the README.md significantly changed.
- Installation for Linux updated.

- arguments of cli.py updated
- the order of "method" and "wsi" is switched
- mm is added; Annotation can make mask from the minimum and the maximum value.
- no_patches enabled, and extract_patches disabled; without setting any args about extracting patches, wsiprocess extracts patches.
- Annotation.from_image()
- Annotation can make mask from a image.
- Citation updated

Update

- added `wsiprocess.annotation.Annotation.from_image` to load mask data from image.
- release added for DOIzenodo