feat: convenience unstructured-get-json.sh update

[cragwolfe]

• script now supports:
  • the --vlm flag, to process the document with the VLM strategy
  • optionally takes --vlm-model, --vlm-provider args
  • optionally also writes .html outputs by converting unstructured .json output
  • optionally opens those .html outputs in a browser

Tested with:

unstructured-get-json.sh --write-html --open-html --fast                                                                layout-parser-paper-p2.pdf
unstructured-get-json.sh --write-html --open-html --hi-res                                                              layout-parser-paper-p2.pdf
unstructured-get-json.sh --write-html --open-html --ocr-only                                                            layout-parser-paper-p2.pdf
unstructured-get-json.sh --write-html --open-html --vlm                                                                 layout-parser-paper-p2.pdf
unstructured-get-json.sh --write-html --open-html --vlm --vlm-provider openai    --vlm-model gpt-4o                     layout-parser-paper-p2.pdf
unstructured-get-json.sh --write-html --open-html --vlm --vlm-provider vertexai  --vlm-model gemini-2.0-flash-001       layout-parser-paper-p2.pdf
unstructured-get-json.sh --write-html --open-html --vlm --vlm-provider anthropic --vlm-model claude-3-5-sonnet-20241022 layout-parser-paper-p2.pdf

layout-parser-paper-p2.pdf