Leverage word bbox from pdf-parser-v2 in the layout- and table-model

[PeterStaar-IBM]

Requested feature

We have much finer grained bbox information using the docling-parse-v2, which could be easily leveraged by layout and table model for improved accuracy.

[maxmnemonic]

Working on implementation, it will require some refactoring of page_preprocessing_model as well as table_structure_model.

[aborruso]

Working on implementation, it will require some refactoring of page_preprocessing_model as well as table_structure_model.

thank you very much

[PeterStaar-IBM]

@maxmnemonic you can leverage this new feature in docling-parse (DS4SD/docling-parse#57)