Split out all AWS-related files into a aws-core or similar package

[mikn]

What I'd like:
It would be lovely if all of the settings, templates and files that are rendered in to make this compatible with EKS/AWS auth could be split into a separate package that you pull in into the variants explicitly.
I have so far found AWS-specific things in core packages, such as:

• release
• kubernetes (also not very clear that this is EKS-D unless you look pretty deep)

(non-exhaustive list)