[AI models] Segment several bounding boxes at once

[Albane-dlv]

Detailed Description

Users should be able to select multiple bounding boxes simultaneously when running a segmentation model

Context

When creating training data, it's often necessary to include several regions in the segmentation. However, segmenting a single large bounding box that covers all these regions can be too resource-intensive. Running the AI analysis multiple times independently isn't ideal either, as it generates separate datasets for each run. To avoid this, users should be able to select multiple bounding boxes and receive a single dataset with all segmented regions as the result.