[Feature]: JSON object property as attribute (e.g. color.id)

[mlumia]

Feature description

It would be very useful to be able to use a JSON object property value from a json API response as attribute.

Example JSON data:

[
  {...},
  {
    "id": 3,
    "name": "1130338",
    "color": {
      "id": 3,
      "code": "lightgray",
      "name": "Light gray"
  },
  {...},
]

Where the color attribute is recognized as an object, and allows the attribute selection fields color.id, color.code and color.name to be selected.

[github-actions]

Thanks a lot for reporting the issue. We did not consider the issue as "Pimcore:Priority", "Pimcore:ToDo" or "Pimcore:Backlog", so we're not going to work on that anytime soon. Please create a pull request to fix the issue if this is a bug report. We'll then review it as quickly as possible. If you're interested in contributing a feature, please contact us first here before creating a pull request. We'll then decide whether we'd accept it or not. Thanks for your understanding.