Get a list of angel types

Example response

{
  "data": [
    {
      "id": 42,
      "name": "Angel",
      "description": "Standard angel type, without further requirements",
      "contact": {
        "name": "Testteam",
        "email": "testteam@example.com"
      },
      "url": "https://example.com/angeltype/42"
    }
  ]
}