[#602] Introduce marker traits and composable marker trait generator …

[elfenpiff]

Notes for Reviewer

Pre-Review Checklist for the PR Author

• Add sensible notes for the reviewer
• PR title is short, expressive and meaningful
• Consider switching the PR to a draft (Convert to draft)
  • as draft PR, the CI will be skipped for pushes
• Relevant issues are linked in the References section
• Every source code file has a copyright header with SPDX-License-Identifier: Apache-2.0 OR MIT
• Branch follows the naming format (iox2-123-introduce-posix-ipc-example)
• Commits messages are according to this guideline
  • Commit messages have the issue ID ([#123] Add posix ipc example)
  • Commit author matches Eclipse Contributor Agreement(and ECA is signed)
• Tests follow the best practice for testing
• Changelog updated in the unreleased section including API breaking changes
• Assign PR to reviewer
• All checks have passed (except task-list-completed)

Checklist for the PR Reviewer

• Commits are properly organized and messages are according to the guideline
• Unit tests have been written for new behavior
• Public API is documented
• PR title describes the changes

Post-review Checklist for the PR Author

• All open points are addressed and tracked via issues

References

Relates to #602

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (dd42fc9) to head (247249f).
Report is 84 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##             main   #603       +/-   ##
=========================================
- Coverage   78.77%      0   -78.78%     
=========================================
  Files         199      0      -199     
  Lines       24118      0    -24118     
=========================================
- Hits        18999      0    -18999     
+ Misses       5119      0     -5119     

see 199 files with indirect coverage changes