Deprecated non-relocatable macro

[traversaro]

🦟 Bug fix

Fixes part of gazebosim/gz-sim#626

Summary

As described in gazebosim/gz-sim#626, we are getting rid of non-relocatable macros. On other libraries this macros have been replaced with functions, but in this case the macro seems unused, so we can simply deprecate it and remove it in a future gz-fuel-tools release. If necessary, relocatable functions can be added in the future.

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[codecov]

Codecov Report

Merging #352 (099fcce) into gz-fuel-tools8 (9036b58) will not change coverage.
The diff coverage is n/a.

❗ Current head 099fcce differs from pull request most recent head b92c90f. Consider uploading reports for the commit b92c90f to get more accurate results

@@               Coverage Diff               @@
##           gz-fuel-tools8     #352   +/-   ##
===============================================
  Coverage           75.30%   75.30%           
===============================================
  Files                  20       20           
  Lines                2911     2911           
===============================================
  Hits                 2192     2192           
  Misses                719      719           

[j-rivero]

good with green CI (some Windows failures in tests are expected).

[j-rivero]

All failing tests are appearing in the -ci-win job. Probably not related to this PR. Thanks @traversaro