async function get(req, res) {
    const cameras = await gladys.device.camera.get();
    res.json(cameras);
  }
@api {get} /api/v1/camera get
@apiName get
@apiGroup Camera
@apiSuccessExample {json} Success-Response:
[
  {
    "id": "fbedb47f-4d25-4381-8923-2633b23192a0",
    "service_id": "a810b8db-6d04-4697-bed3-c4b72c996279",
    "room_id": "2398c689-8b47-43cc-ad32-e98d9be098b5",
    "name": "Test camera",
    "selector": "test-camera",
    "external_id": "test-camera-external",
    "should_poll": false,
    "poll_frequency": null,
    "created_at": "2019-02-12T07:49:07.556Z",
    "updated_at": "2019-02-12T07:49:07.556Z",
    "features": [
      {
        "name": "Test camera image",
        "selector": "test-camera-image"
      }
    ],
    "room": {
      "name": "Test room",
      "selector": "test-room"
    }
  }
]