How to use Open3D with QT6,QML,C++

### Checklist

- [X] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues).
- [X] For Python issues, I have tested with the [latest development wheel](https://www.open3d.org/docs/latest/getting_started.html#development-version-pip).
- [X] I have checked the [release documentation](https://www.open3d.org/docs/release/) and the [latest documentation](https://www.open3d.org/docs/latest/) (for `main` branch).

### My Question

Hi everyone and thanks for this great library.

I was wondering if I can add Open3D project to QT6 and use it to load .PLY file, and pass it to QML files?

I am quite new to QT and Open3D, so would appreciate your helps :)