UML-3115 Move ECS Terraform to region module

[ntse]

Purpose

Move all ECS-related Terraform resources to the region module in as part of the work to allow for multi-region deployments.

Fixes UML-3115

Approach

Move all of the ECS-related code and use temporary variables to pass in identifiers of resources created outside of the region module (e.g. loadbalancers). Create a refactor.tf file to update Terraform state.

Learning

Any tips and tricks, blog posts or tools which helped you. Plus anything notable you've discovered about the Use a Lasting Power of Attorney service

Checklist

• I have performed a self-review of my own code
• I have added relevant logging with appropriate levels to my code
• New event_codes have been documented on the wiki page
• I have updated documentation (Confluence/GitHub wiki/tech debt doc) where relevant
• I have added tests to prove my work
• I have added welsh translation tags and updated translation files
• I have run an accessibility tool on any pages I have made changes to and fixed any issues found
• I have notified the Interaction Designer of any content changes so that appropriate screenshots/flow diagram changes can be made
• The product team have tested these changes

[andrewpearce-digital]

I think there might be an issue with the way providers are defined and passed in. Specifying a region provider, and passing in an unspecified management provider might result in the management provider being used wherever you have not told a resource what provider to use.

Also could use a fmt