[#96] introduce monitoring

[elfenpiff]

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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.

Relates to #96

[codecov]

Codecov Report

Attention: 141 lines in your changes are missing coverage. Please review.

Comparison is base (4c39e70) 77.62% compared to head (e57ab41) 77.36%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #99      +/-   ##
==========================================
- Coverage   77.62%   77.36%   -0.27%     
==========================================
  Files         178      181       +3     
  Lines       19222    19596     +374     
==========================================
+ Hits        14922    15160     +238     
- Misses       4300     4436     +136     

Files	Coverage Δ
iceoryx2-bb/lock-free/src/mpmc/container.rs	94.37% <100.00%> (-0.03%)	⬇️
iceoryx2-bb/posix/src/shared_memory.rs	81.65% <100.00%> (+0.05%)	⬆️
iceoryx2-bb/posix/src/udp_socket.rs	75.79% <100.00%> (+0.05%)	⬆️
iceoryx2-bb/system-types/src/path.rs	85.05% <ø> (ø)
iceoryx2/src/service/builder/mod.rs	80.89% <100.00%> (-0.13%)	⬇️
iceoryx2-cal/src/monitoring/mod.rs	62.50% <62.50%> (ø)
iceoryx2-cal/src/static_storage/file.rs	78.29% <0.00%> (ø)
iceoryx2-cal/src/monitoring/process_local.rs	71.59% <71.59%> (ø)
iceoryx2-cal/src/monitoring/file_lock.rs	56.25% <56.25%> (ø)

... and 3 files with indirect coverage changes

[elBoberido]

Looks good. Just a question for the process_local cleaner.

Related to #113, since the names are now used more and more, if you want to change them it should be done in the near future.

[elfenpiff]

Looks good. Just a question for the process_local cleaner.

Related to #113, since the names are now used more and more, if you want to change them it should be done in the near future.

I would address this with the next PR. I would like to merge this soon, since it fixes clippy warnings in the CI as well.