Add OpenID adapter Getting Started guide and template

[JimTharioAmazon]

Add a discussion of the integration patterns from the compute blog article: https://aws.amazon.com/blogs/compute/introducing-aws-virtual-waiting-room/

There are four common patterns supported for integrating the waiting room into your application:

[JimTharioAmazon]

End-to-end example environment for demonstrate VWR using ALB, VPC, web host and OIDC listener target. Create an integration cookbook with several other examples of client applications with OIDC capability using VWR.