[Feature proposal] Lambda to convert Textract result (on S3?) to HTML (on S3?)

With Amazon Textract Response Parser for JavaScript/TypeScript we are working through [release](https://github.com/aws-samples/amazon-textract-response-parser/pull/172) of functionality to convert a document to semantic HTML for LLMs, based on [Amazon Textract's Layout analysis feature](https://aws.amazon.com/blogs/machine-learning/amazon-textracts-new-layout-feature-introduces-efficiencies-in-general-purpose-and-generative-ai-document-processing-tasks/).

Since setting up end-to-end processing pipelines with Textract tends to require cloud infrastructure (e.g. SNS notifications, rate limit management, etc), and this repo is a preferred place to host constructs for IDP - would it make sense for us to add a construct for a Lambda function (using TRP) to convert a Textract result JSON into an HTML file? Users could incorporate it into workflows such as document ingestion for RAG.