completed my onboarding task

[fsoehn]

Proposed changes

Completed onboarding tasks by adding new onboarding package and new odm_relay and odm_publisher nodes.

Checklist

• [x] I have read the CONTRIBUTING doc
• [x] Lint and unit tests pass locally with my changes
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] I have added the necessary documentation (if appropriate)
• [x] Any changes to main have been merged into my branch

[github-actions[bot]]

🦙 MegaLinter status: ❌ ERROR

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
❌ PYTHON	mypy	5		1	1.23s
✅ PYTHON	ruff	5		0	0.01s

See detailed report in MegaLinter reports _Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff_

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[github-actions[bot]]

Cpp-Linter Report :heavy_check_mark:

No problems need attention.

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