Updated initial hook example boilerplate code to target real resource type

[Brianwithay21]

Updated the initial guided-aws boilerplate code to use a real world example of verifying an S3 bucket's encryption

Related PR:

• Update example hook schema to target real resource types cloudformation-cli#884

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[shri-tambe]

I like this test case.

[wkexiang]

Just want to confirm that those handlers should do the things as expected right? Have you performed any end-to-end tests?

[Brianwithay21]

Just want to confirm that those handlers should do the things as expected right? Have you performed any end-to-end tests?

Yes, I built and registered the default boilerplate code and created a complaint stack and non-compliant stack. Both operations had the expected result

[wkexiang]

Just want to confirm that those handlers should do the things as expected right? Have you performed any end-to-end tests?

Yes, I built and registered the default boilerplate code and created a complaint stack and non-compliant stack. Both operations had the expected result

Got it. Thanks for confirming