Integrate Load Testing Tooling from Locust

[JimTharioAmazon]

Describe the feature you'd like
As a waiting room operator, I'd like to be able to perform a load simulation on the APIs to ensure configuration will scale appropriately.

We want to make the existing Locust tooling easy to deploy and launch.

Additional context
https://docs.aws.amazon.com/solutions/latest/aws-virtual-waiting-room/performance-data.html
https://aws.amazon.com/solutions/implementations/distributed-load-testing-on-aws/?did=sl_card&trk=sl_card

[JimTharioAmazon]

Let's try to relocate the steps performed at the workstation to the coordinator node or another cloud-hosted resource.

We'll want this to be installed via a CloudFormation template (classic or CDK).

What are our options for parameterizing the installation - using data from the Core stack, for example.