Add yaml-cpp as a dependency in libpointmatcherConfig.cmake.in

[boxanm]

Description

Summary:

Addressing #563

Changes and type of changes (quick overview):

• Added yaml-cpp as a dependency in libpointmatcherConfig.cmake.in

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Checklist:

Code related

• I have made corresponding changes to the documentation
  (i.e.: function, class, script header, README.md)
• All tests pass locally with my changes
  (Check contributing_instructions.md for local testing procedure using libpointmatcher-build-system)

PR creation related

• My pull request base ref branch is set to the develop branch
  (the build-system won't be triggered otherwise)
• My pull request branch is up-to-date with the develop branch
  (the build-system will reject it otherwise)

PR description related

• I have included a quick summary of the changes
• I have indicated the related issue's id with # <issue-id> if changes are of type fix
• I have included a high-level list of changes and their corresponding types
  (See commit_msg_reference.md for details)

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud