(cdk): Add support for changesets of nested stacks

[chauncey-garrett]

Change sets for nested stacks are now supported in CF: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/change-sets-for-nested-stacks.html

Use Case

As a CDK user, I need to preview the change set of nested stacks.

Proposed Solution

Add an option to view recursively the change set(s) of nested stacks, similar to the following:

cdk deploy --include-nested-stacks 

Other

Nested stack change sets have been requested elsewhere (#9293) but prior to CF having this capability, which was introduced on Nov 18, 2020.

I've created this new ticket simply for visibility.

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This is a 🚀 Feature Request

[ryparker]

Hey @chauncey-garrett 👋

This would be nice to have. Thanks for opening this request.

I'm going to mark this as p2 which means that we are unable to work on this immediately. We use +1s to help us prioritize our work, and as always we are happy to take contributions if anyone is interested to pick this up and submit a PR (please make sure to follow our contribution guidelines.)
🙏