Bindings for LaneEndSet and BranchPoint abstraction.

[francocipollone]

🎉 New feature

On top of #61

Related to

28 #17

Summary

Add LaneEndSet

Checklist

• [x] Signed all commits for DCO
• [x] Added tests
• [ ] Added example and/or tutorial
• [ ] Updated documentation (as needed)
• [ ] Updated migration guide (as needed)
• [ ] Consider updating Python bindings (if it affects the public API)

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.