Support GCP Bucket creation in 2k architecture

• Adds support for deploying Google Object Storage as part of the 2,000 user reference architecture

Related #262 (closed)

Signed-off-by: Robert Marshall rmarshall@gitlab.com

Testing

Buckets created by Terraform

object_storage_buckets = [
  "gs://mnielsen-test-gcs-artifacts",
  "gs://mnielsen-test-gcs-external-diffs",
  "gs://mnielsen-test-gcs-lfs-objects",
  "gs://mnielsen-test-gcs-uploads",
  "gs://mnielsen-test-gcs-packages",
  "gs://mnielsen-test-gcs-dependency-proxy",
  "gs://mnielsen-test-gcs-terraform-state",
]