To avoid breaking change and make the upkeep less painful in the future, the existing representation will be used.

The new key is_custom will help the user to distinguish custom service with 'classical' service.

In addition to Tuleap defined services, the custom services will be added with the following format.

{
    "id": 2613,
    "label": "My custom service",
    "name": "",
    "is_enabled": true,
    "icon": ""
    "url": "https://...",
    "uri": "project_services/2613",
    "is_custom": true
  }