Adds cross account hosted zone module

Subsumes: https://github.com/wellcometrust/tf_cross_account_route53_hosted_zones

Allow to instantiate multiple lambdas with the same code

Merge pull request #4 from wellcometrust/reusable-lambda-code

Allow to reuse the same lambda code in instances with different name

Admin bucket user output name

Adds name to admin outputs

ECS ALB ID

Adds the ecs alb id output.

Initial release

Direct copy from platform repo