Create a smaller scale reference architecture example to highlight boilerplate features

[yorinasub17]

Description

This PR moves all the existing examples to the examples/for-learning-and-testing folder, and adds in a full fledged examples/for-production folder. I recommend viewing the examples folder in the github browser to review this: https://github.com/gruntwork-io/boilerplate/tree/feature/for-production-example

This is the start of addressing #85, by providing a smaller scale, but complete example of how boilerplate templates in production should look like. This new example should demonstrate a lot of the patterns we invented in the Architecture Catalog in a more digestable format that is hopefully easier to follow and explain.

In the future, we can build a tutorial that works our way towards this end result.

TODOs

Please ensure all of these TODOs are completed before asking for a review.

• Ensure the branch is named correctly with the issue number. e.g: feature/new-vpc-endpoints-955 or bug/missing-count-param-434.
• Update the docs.
• Keep the changes backward compatible where possible.
• Run the pre-commit checks successfully.
• Run the relevant tests successfully.

[rhoboat]

I love it! The addition of for-production examples is wonderful. NIT: Is it worth explaining a little about the ordering? i.e., reference-architecture blueprint is first, then the reference-architecture-app-account for each of those, etc? Or at least point to the entry point blueprint, so that it's easy to then cascade / follow the references down to the end?

[yorinasub17]

NIT: Is it worth explaining a little about the ordering?

That probably makes sense. Let me merge this in because I am running into frequent merge conflicts due to the folder change in the examples, and then will push an iteration for the docs.

[yorinasub17]

Thanks for review! (Intentionally keeping branch since I shared the link to the branch with Deloitte for feedback, and don't want them to get a 404)