Delegate *.publishing.service.gov.uk subdomains to environment AWS accounts

[samsimpson1]

User Need

As an SRE
I want to be able to programatically create DNS records for the publishing.service.gov.uk domain in Route53
so that I don't have to manually add records to govuk-dns-tf

Functional Requirements (What):

• create new hosted zones for $ENV.publishing.service.gov.uk in each corresponding environment AWS account
• create copies of relevant records from govuk-dns-tf in the new zones
• create NS records in publishing.service.gov.uk zone (doing this programatically too would be nice)
• clean up moved records from govuk-dns-tf

Acceptance Criteria:

• I can create records for $ENV.publishing.service.gov.uk using terraform or other IaC tools operating in that environment's AWS account

Notes:

• at the moment, we use a single hosted zone in Route53 to manage records for publishing.service.gov.uk
• this makes it difficult/impossible to automate record creation for this zone, so we have to manually create records for this zone