Configure Regions from `Projects :: Infra :: Google Cloud`

What does this MR do and why?

The commit allows the maintainer / owner to configure their preferred GCP region per environment from the Project :: Infra :: Google Cloud section

Change list:

• Backend:
  • Update the infrastructure_menu to recognize :gcp_regionsas an active route for :google_cloud
  • routes/google_cloud includes the gcp_regions_controller routers
  • gcp_regions_controller with implementations for showing form and processing form submit
  • gcp_regions_service to list out GCP region vars for project
• Frontend
  • gcp_regions_list component to list out regions configured for project
  • home includes gcp_regions_list
  • gcp_regions_form can be used to configure a new region / env mapping
  • template for gcp_regions_form
  • app recognizes GCP_REGIONS_FORM screen

Screenshots or screen recordings

Kooha-02-08-2022-19-04-40

How to set up and validate locally

1. Enable incubation_5mp_google_cloud feature flag for a test project
2. In GitLab web ui, navigate to project
3. Go to Infra :: Google Cloud page
4. Use the Regions section / button / form

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.