It would be great to be able to run open3d without plotly installed

[Hjorthmedh]

Checklist

• I have searched for similar issues.
• For Python issues, I have tested with the latest development wheel.
• I have checked the release documentation and the latest documentation (for main branch).

Proposed new feature or change

The plotly installation has over 30000 files, and I would like to use the open3d features without having plotly installed (limited number of files allowed on HPC).

But I am unable to import open3d without plotly.

>>> import open3d
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/lib/python3.11/site-packages/open3d/__init__.py", line 112, in <module>
    import open3d.visualization
  File "lib/python3.11/site-packages/open3d/visualization/__init__.py", line 19, in <module>
    from .draw_plotly import draw_plotly
  File "/lib/python3.11/site-packages/open3d/visualization/draw_plotly.py", line 10, in <module>
    import plotly.graph_objects as go
ModuleNotFoundError: No module named 'plotly'

/lib/python3.11/site-packages> find plotly -name "*" | wc
  33492   33492 2072651

33492 files for plotly is a lot, and not needed for all parts of open3d.

References

No response

Additional information

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