Request to add Spherical Harmonics Lighting Model to Open3D visualization shader support?

### 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](http://www.open3d.org/docs/latest/getting_started.html#development-version-pip).
- [X] I have checked the [release documentation](http://www.open3d.org/docs/release/) and the [latest documentation](http://www.open3d.org/docs/latest/) (for `master` branch).

### Proposed new feature or change

Hi, I notice SH is a very useful lighting model in computer graphics applications like 3D face/body. Do you have any plan to implement SH lighting model in Open3D. Thanks.

### References

_No response_

### Additional information

_No response_