Add support for video segmentation with point prompts (#450)

* Add support for video segmentation with point prompts

* Add mask prompt notebook

* Update samgeo/samgeo3.py

Co-authored-by: Copilot <[email protected]>

* Update samgeo/samgeo3.py

Co-authored-by: Copilot <[email protected]>

* Update docs/examples/sam3_video_prompts.ipynb

Co-authored-by: Copilot <[email protected]>

* Update docs/examples/sam3_video_prompts.ipynb

Co-authored-by: Copilot <[email protected]>

* Update docs/examples/sam3_video_prompts.ipynb

Co-authored-by: Copilot <[email protected]>

* Update samgeo/samgeo3.py

Co-authored-by: Copilot <[email protected]>

* Update samgeo/samgeo3.py

Co-authored-by: Copilot <[email protected]>

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Co-authored-by: Copilot <[email protected]>

Author: giswqs