CDK as a deployment alternative

[pcholakov]

Hey @TimothyJones! Thank you so much for making this, it made my life a lot simpler connecting Cognito with GitHub OAuth!

I prefer to use CDK to model AWS stacks for deployment and made this as an alternative to SAM: https://github.com/pcholakov/github-cognito-openid-wrapper/tree/cdk. I was curious if you might be interested in getting it incorporated upstream? I built the stack in TypeScript purely out of inertia but it could also be easily done in pure JavaScript to be more in keeping with the rest of your project. I feel that a CDK stack makes the solution a bit more composable for more consumers than the current SAM template. Feel free to say no, just thought I'd mention it :-)

Thanks again for sharing the project!