[#464] c api

[elfenpiff]

Notes for Reviewer

• Implements the C and C++ binding for log.
• It renames the Logger trait for custom loggers to Log to be more in line with the Rust naming scheme - traits are verbs
• provides user convenience functions to set the file logger as default logger

Pre-Review Checklist for the PR Author

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

Checklist for the PR Reviewer

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

Post-review Checklist for the PR Author

1. [x] All open points are addressed and tracked via issues

References

Relates to #464

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 7.69231% with 12 lines in your changes missing coverage. Please review.

Project coverage is 78.90%. Comparing base (6f20ebd) to head (4f105f3). Report is 13 commits behind head on main.

Files with missing lines	Patch %	Lines
iceoryx2-bb/log/src/logger/mod.rs	0.00%	11 Missing :warning:
iceoryx2-bb/log/src/lib.rs	50.00%	1 Missing :warning:

Additional details and impacted files

[](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/466?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx) ```diff @@ Coverage Diff @@ ## main #466 +/- ## ========================================== - Coverage 79.00% 78.90% -0.10% ========================================== Files 197 198 +1 Lines 23637 23650 +13 ========================================== - Hits 18674 18662 -12 - Misses 4963 4988 +25 ``` | [Files with missing lines](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/466?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx) | Coverage Δ | | |---|---|---| | [iceoryx2-bb/log/src/logger/buffer.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/466?src=pr&el=tree&filepath=iceoryx2-bb%2Flog%2Fsrc%2Flogger%2Fbuffer.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItYmIvbG9nL3NyYy9sb2dnZXIvYnVmZmVyLnJz) | `0.00% <ø> (ø)` | | | [iceoryx2-bb/log/src/logger/console.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/466?src=pr&el=tree&filepath=iceoryx2-bb%2Flog%2Fsrc%2Flogger%2Fconsole.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItYmIvbG9nL3NyYy9sb2dnZXIvY29uc29sZS5ycw==) | `51.82% <ø> (ø)` | | | [iceoryx2-bb/log/src/logger/file.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/466?src=pr&el=tree&filepath=iceoryx2-bb%2Flog%2Fsrc%2Flogger%2Ffile.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItYmIvbG9nL3NyYy9sb2dnZXIvZmlsZS5ycw==) | `0.00% <ø> (ø)` | | | [iceoryx2-bb/log/src/lib.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/466?src=pr&el=tree&filepath=iceoryx2-bb%2Flog%2Fsrc%2Flib.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItYmIvbG9nL3NyYy9saWIucnM=) | `64.00% <50.00%> (ø)` | | | [iceoryx2-bb/log/src/logger/mod.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/466?src=pr&el=tree&filepath=iceoryx2-bb%2Flog%2Fsrc%2Flogger%2Fmod.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItYmIvbG9nL3NyYy9sb2dnZXIvbW9kLnJz) | `0.00% <0.00%> (ø)` | | ... and [10 files with indirect coverage changes](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/466/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx)