Create an AWS Step Functions workflow to integrate with Amazon SNS.
The template deploys a Step Functions workflow, an SNS topic and the IAM permissions required to run the application. Step Functions publishes a message to the SNS topic when invoked. The AWS SAM template deploys the resources and the IAM permissions required to run the application.
Start the Workflow using the `start-execution` api command with a `InputAndMessage` string in the input payload. The Workflow will send the message to the SNS topic.