[#69] port traits

[elfenpiff]

Notes for Reviewer

• All port files were moved to $PORTNAME$_impl.rs and renamed
• Sample & SampleMut files were moved to $SAMPLE$_impl.rs
• The traits Listener, Notifier, Publisher, PublisherLoan, Subscriber, Sample, SampleMut, UninitializedSample were introduced

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
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

Use either 'Closes #123' or 'Relates to #123' to reference the corresponding issue.

Closes #69
Closes #74

[codecov]

Codecov Report

Attention: 51 lines in your changes are missing coverage. Please review.

Comparison is base (5d91cc7) 78.00% compared to head (023e5e4) 77.97%.
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #73      +/-   ##
==========================================
- Coverage   78.00%   77.97%   -0.04%     
==========================================
  Files         172      177       +5     
  Lines       18795    18789       -6     
==========================================
- Hits        14661    14650      -11     
- Misses       4134     4139       +5     

Files	Coverage Δ
iceoryx2-bb/elementary/src/enum_gen.rs	33.33% <ø> (ø)
iceoryx2-bb/lock-free/src/spsc/index_queue.rs	93.33% <100.00%> (+0.09%)	⬆️
iceoryx2-bb/lock-free/src/spsc/queue.rs	96.22% <100.00%> (+0.10%)	⬆️
...ck-free/src/spsc/safely_overflowing_index_queue.rs	93.30% <100.00%> (+0.14%)	⬆️
iceoryx2/src/port/details/publisher_connections.rs	90.54% <ø> (+3.52%)	⬆️
iceoryx2/src/port/mod.rs	0.00% <ø> (ø)
iceoryx2/src/port/notifier.rs	85.83% <100.00%> (+5.36%)	⬆️
iceoryx2/src/service/port_factory/listener.rs	60.00% <ø> (ø)
iceoryx2/src/service/port_factory/notifier.rs	87.50% <ø> (ø)
iceoryx2/src/service/port_factory/publisher.rs	59.09% <ø> (ø)
... and 12 more

... and 1 file with indirect coverage changes

[elBoberido]

Sorry for leaving the PR for so long. Looks good. Basically just a few naming proposals. Can also be merged as is once the branch is rebased to main.

[elBoberido]

Just noticed that the words from the trait are reversed compared to the function, UninitLoan <-> loan_uninit, while they are not in other traits, e.g. SendCopy <-> send_copy