Point-cloud-based methods in Open3d-ML

[sebbyjp]

Create a new subclass of SensoryAgent that returns a Sample subclass representing the objects and volume bounding boxes.

Steps:

• 1. Experiment with pre-trained models in Open3D-ML
• 2. Define appropriate Sample subclass that contains 3d volume bounding box information.
• 3. Load weights from select object-detection and semantic-segmentation models from Open3D-ML and upload to HuggingFace
• 4. Implement SensoryAgent interface.
• 5. Add unit tests and create Gradio App with examples for qualitative inspection.