feat: allow aws_cloudfront_origin_access_identity to be toggled on/off

[venkatamutyala]

what

Even when i'm using an external origin (ex. a GCP IP) it appears aws_cloudfront_origin_access_identity always gets created. This is to provide a toggle to disable it.

why

The aws_cloudfront_origin_access_identity resource isn't required for all use cases Ex. using cloudfront in front of non-AWS resources.

references

https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudfront_origin_access_identity

[Gowiem]

/terratest