Support for box prompts

This release introduces:

• Support for bounding box prompts, which provide better segmentation results than points in many cases.
• Interactive tracking now uses a better heuristic to propagate masks across time, leading to better automatic tracking results.
• and fixes several small bugs that have lead to missing intermediate frames / slices in tracking / 3d segmentation

What's Changed

• Expose model type as argument by @constantinpape in #12
• Convert inputs to uint8 by @constantinpape in #15
• Update Prompted Generator - Add Box Prompts by @anwai98 in #13
• Add test for the point prompt generator by @constantinpape in #16
• Add Condition for Background Points by @anwai98 in #18
• Implement instance segmentation with background by @constantinpape in #21
• Implement box prompts for all annotators by @constantinpape in #22
• New release by @constantinpape in #25
• Minor documentation changes by @ajinkya-kulkarni in #26
• Create README.md by @constantinpape in #27
• Fixed typo(s) by @ajinkya-kulkarni in #28

New Contributors

• @ajinkya-kulkarni made their first contribution in #26

Full Changelog: 0.0.1...0.0.2