Use libexec to install lib binaries

[j-rivero]

We are installing the cli11 binaries in under the standard library path which is something that does not fit well according to the FHR. libexec seems a better place for them:

4.7.1. Purpose

/usr/libexec includes internal binaries that are not intended to be executed directly by users or shell scripts. Applications may use a single subdirectory under /usr/libexec.

[codecov]

Codecov Report

Merging #279 (9c3e190) into ign-transport11 (b470925) will decrease coverage by 22.40%.
The diff coverage is n/a.

❗ Current head 9c3e190 differs from pull request most recent head c1488d6. Consider uploading reports for the commit c1488d6 to get more accurate results

@@                 Coverage Diff                  @@
##           ign-transport11     #279       +/-   ##
====================================================
- Coverage            89.07%   66.66%   -22.41%     
====================================================
  Files                   51        1       -50     
  Lines                 4777       24     -4753     
====================================================
- Hits                  4255       16     -4239     
+ Misses                 522        8      -514     

Impacted Files	Coverage Δ
src/NetUtils.cc
log/src/MsgIter.cc
log/src/Batch.cc
src/Uuid.cc
log/src/QueryOptions.cc
src/TopicStatistics.cc
src/Discovery.cc
src/NodeOptionsPrivate.hh
include/ignition/transport/TopicStatistics.hh
...og/include/ignition/transport/log/QualifiedTime.hh
... and 42 more

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[chapulina]

Do we need any changes to the -release repo?

[j-rivero]

Do we need any changes to the -release repo?

Yes! gazebo-release/gz-transport11-release#4

[mjcarroll]

The CLI binaries can still be executed standalone by a user if they don't wish to use ign, so I don't know if libexec is the correct location for them.

[chapulina]

@mjcarroll has a good point. Maybe we need to create new ignition-transport11 packages for the binaries?

[chapulina]

Maybe we need to create new ignition-transport11 packages for the binaries?

I believe this is what's being suggested for plugin2 here, right @j-rivero ?

• Install ign-plugin executable gazebo-release/gz-plugin2-release#5

[j-rivero]

Yep, the same.

[j-rivero]

Updated the -release repo PR gazebo-release/gz-transport11-release#4