As a project admin I can automate configuration of my project

GET /projects/:id/project_services returns the list of the services in the given project.

[
      {
        "id": <int>,
        "uri": <string>,
        "name": <string>,
        "label": <string>,
        "is_enabled": <bool>
      },
      …
]

PUT /projects_services/:id update the service. For now, only the update of is_enabled is allowed.

{
  …,
  "is_enabled": <bool>
}