Add Captioning task; reorder tasks REC, Captioning, TOG, TRG, OCR

Add nuscenes_captioning config

Sync README edits

Reorganize into nuscenes/<task>/ subfolders, clean up stale config metadata, use test split throughout

Move Text-Region Grounding config to test split

Move Text-Object Grounding config to test split

Move OCR config to test split

Rename REC config, move to test split

Add nuscenes_text_region_grounding config

Add nuscenes_text_object_grounding config

Add nuscenes_ocr config

Add nuscenes config as Parquet with embedded images for the Dataset Viewer

Add nuscenes config as Parquet with embedded images for the Dataset Viewer

Sync trimmed README

Update README to align with the Read the Object paper

Add nuScenes source: images, bbox images, and REC annotations