New extension submission

To submit an extension to Serverlesspresso, submit an issue with the following information.

**To learn more about submitting an extension, read the [publishing guidelines page](https://github.com/aws-samples/serverless-coffee/blob/main/PUBLISHING.md).**

1. Use the model template located at https://github.com/aws-samples/serverless-coffee/extensions/tree/main/_extension-model to set up a README, template and any associated code.

Note the following information for the model:
- Description (intro.text) should be a 300-500 word explanation of how the extension works.
- Resources should link to AWS documentation and AWS blogs related to the post (1-5 maximum).
- Framework: currently, we support SAM or CDK.
- Author bio may include a LinkedIn and/or Twitter reference and a 1-sentence bio.

You must ensure that the sections of the model README.md are completed in full.

## GitHub PR for template: