Rules engine, DynamoDB operations, DynamoDB stream Lambda

Functionality

• Rules engine integrated with DynamoDB operations
• DynamoDB stream Lambda examples

There are some articles from Adrian that implemented the original implementation

• https://adrianhesketh.com/2020/08/28/event-sourced-dynamodb-design-with-typescript-part-1/
• https://adrianhesketh.com/2020/08/28/event-sourced-dynamodb-design-with-typescript-part-2/

The functionality of code is unchanged from a previously published version but the published package is now more succinct.