Allow terraform to generate the base role for cluster creation

[super-cob]

This is a fork from https://github.com/yuvipanda/terraform-deploy/tree/fix/no-users and the idea is that you can terraform apply from the aws-creds folder to create a group that may assume a role from which you may then run the real terraform script from the aws folder. You simply add yourself to the group and then use awsudo or sts to assume the role in a shell before creating your EKS cluster. Looking for direction here, I took a lot of liberties and I want to gauge interest in adopting this system for other orgs.

[super-cob]

No longer a WIP, this is legit now!