Refactor away from aws blueprints + add custom vpc_cni

[zack-is-cool]

This PR refactors the meat of the EKS cluster and nodes to the upstream aws terraform module - terraform-aws-eks away from blueprints.

The main reason for this is that most of the AWS blueprints functionality is being deprecated, see https://github.com/aws-ia/terraform-aws-eks-blueprints/blob/docs/v5-direction/DIRECTION_v5.md#notable-changes

With this change we are also adding the ability to configure eks native cluster_addons with the ability to configure and deploy eks add-ons before nodegroups are deployed.

Breaking changes to EKS module

Name changes were made to many of the inputs and outputs from the eks module. These were made to have parity with the new upstream module.

Changes to the complete example

Can now deploy eks managed and self managed node groups, but also has the ability to do one or none based on the inputs enable_self_managed_nodegroups and enable_eks_managed_nodegroups and had been refactored to use the new eks module.

Zarf example

This will break the zarf example, the intention is to go back and fix that in another pr and fix all the inputs.

This PR closes #73 and supports #75

[RothAndrew]

Looks like you are doing updates to the complete-managed-nodegroup and complete-self-managed-nodegroup examples, and adding a new example complete-self-managed-ng-intra-subnets.

My next step after merging #90 was to delete those two existing examples (first complete-managed-nodegroup, then complete-self-managed-nodegroup after the test for "secure mode" is done)

Adding another example on top concerns me, as it looks to be a lot of copy/pasted code again, which is going to negatively affect maintainability.

Understand that this is very much a WIP PR, but want to make sure we aren't moving in opposite directions.

[zack-is-cool]

Yeah I wasn't intending for that folder to make it into main. Just extra scratch space as I worked through some of the new variables and logic while still looking at the old examples

[zack-is-cool]

/test all

[zack-is-cool]

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[zack-is-cool]

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[zack-is-cool]

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[zack-is-cool]

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[zack-is-cool]

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[zack-is-cool]

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[zack-is-cool]

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[zack-is-cool]

/test all
added some defaults to account for automatically getting current user info for "admin" stuff

[ntwkninja]

Security features don't have parity but everything else looks good!

Will update existing EKS security group issue #17 and add others as needed to capture the delta