Make plane segmentation from point cloud deterministic

[jkuck]

This change makes the results deterministic when a random seed is set.

Type

• Bug fix (non-breaking change which fixes an issue): Fixes #
• New feature (non-breaking change which adds functionality). Resolves #
• Breaking change (fix or feature that would cause existing functionality to not work as expected) Resolves #

Motivation and Context

Checklist:

• I have run python util/check_style.py --apply to apply Open3D code style
  to my code.
• This PR changes Open3D behavior or adds new functionality.
  • Both C++ (Doxygen) and Python (Sphinx / Google style) documentation is
    updated accordingly.
  • I have added or updated C++ and / or Python unit tests OR included test
    results (e.g. screenshots or numbers) here.
• I will follow up and update the code if CI fails.
• For fork PRs, I have selected Allow edits from maintainers.

Description

[update-docs]

Thanks for submitting this pull request! The maintainers of this repository would appreciate if you could update the CHANGELOG.md based on your changes.

[ssheorey]

Thanks @jkuck !

Updated title of PR.

[jkuck]

Thanks for updating the title @ssheorey! Would you please help me fix the failing style check?

[yuecideng]

Hi @jkuck, please check the style guide: https://www.open3d.org/docs/release/contribute/styleguide.html

[jkuck]

Thanks @yuecideng! I fixed the formatting using your instructions.

[jkuck]

@ssheorey, @yuecideng it looks like we are waiting on workflows to complete before merging. Do you know what needs to be done to kick the workflows off? Thanks.

[jkuck]

@ssheorey I see that all checks have passed now. Are we waiting on anything else to merge?

[ssheorey]

Thanks @jkuck ! Merged.

[jkuck]

Thank you!