[#500] Expose UniquePortId bytes in CXX API

[orecham]

Notes for Reviewer

Provides an API to access the bytes representing a UniquePortId from the CXX API.

Pre-Review Checklist for the PR Author

1. Add sensible notes for the reviewer
2. PR title is short, expressive and meaningful
3. Relevant issues are linked in the References section
4. Every source code file has a copyright header with SPDX-License-Identifier: Apache-2.0 OR MIT
5. Branch follows the naming format (iox2-123-introduce-posix-ipc-example)
6. 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)
7. Tests follow the best practice for testing
8. Changelog updated in the unreleased section including API breaking changes
9. Assign PR to reviewer
10. 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

1. All open points are addressed and tracked via issues

References

Closes #500

[orecham]

@elBoberido @elfenpiff

I implemented the API for UniquePublisherId but want to get some feedback before implementing it for the rest. What do you guys think of this approach?

EDIT: I went ahead and implemented a rest to unblock myself. Let me know if you see a better way though.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 79.06%. Comparing base (f2a948b) to head (55519ac).
Report is 28 commits behind head on main.

Files with missing lines	Patch %	Lines
iceoryx2/src/port/port_identifiers.rs	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #501      +/-   ##
==========================================
- Coverage   79.31%   79.06%   -0.26%     
==========================================
  Files         200      201       +1     
  Lines       23757    24142     +385     
==========================================
+ Hits        18843    19088     +245     
- Misses       4914     5054     +140     

Files with missing lines	Coverage Δ
iceoryx2/src/port/port_identifiers.rs	63.63% <0.00%> (-23.87%)	⬇️

... and 18 files with indirect coverage changes

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests

[orecham]

@elfenpiff @elBoberido Could you take a look at this

[elBoberido]

Just skimmed over the PR and the missing const grabbed my attention :)