Added polyline interpolation (in the new lane_helpers sub-package)

[RmSchaffert]

Description

Added a new lane_helpers package with polyline interpolation as the first contained functionality

Type of Change

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• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation / examples / tutorials / demos
• Supporting functionality change (fix or feature in documentation generation, helper scripts, ...)
• Refactoring / internal change
• Other (please describe):

Testing

Checklist for testing:

• Tests added or updated if/as needed
• Repository test runner executed: scripts/run_tests.sh

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Documentation, Examples, Tutorials, Demos

Checklist for documentation:

• User-facing documentation updated if/as needed (including API docs)
• Examples / tutorials / demos updated or added (if relevant)
• Limitations and constraints documented (if relevant)
• Performance documented (if relevant)
• Documentation building successful & checks outlined in the Documentation Checks section of the Contribution Guide are performed

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Code Quality

Checklist for dependencies:

• Dependencies updated in the relevant pyproject.toml if/as needed
• Code formatted according to the Code Formatting Guide

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Related Issues / Context

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DCO / Sign-Off

Please refer to the section on Signing Your Work & Developer Certificate of Origin (DCO)
in the Contribution Guide before submitting your contribution.

References

For additional details, please refer to the Contribution Guide.
The following guides are available (referenced in the Contribution Guide for further details):

• docs/guides/CONTRIBUTION_GUIDE.md
• docs/guides/DEVELOPMENT_GUIDE.md
• docs/guides/DOCUMENTATION_SETUP_GUIDE.md
• docs/guides/FORMATTING_GUIDE.md

Please also refer to the summary checklist in the Contribution Guide,
which is a guideline for what to consider when submitting your contribution and covers the same topics as the checklists above.

[RmSchaffert]

/build

[RmSchaffert]

/build

[RmSchaffert]

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[RmSchaffert]

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[RmSchaffert]

Apart from the comments above, I also updated other contained packages (batching_helpers and draw_heatmap) to use the fixed CUDA & torch error handling.

I also added functionality to generate plots from committed data instead of committing the resulting images.

@xupinjie The plot generation is according to our discussion in PR #36. It is standardized and a package can provide a hook if it needs to generate plots (or other files) during docs build.

[RmSchaffert]

/build