Add copyright owner (backport #330)

[mergify]

See https://opensource.org/license/bsd-3-clause and ros-controls/control_msgs#120

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This is an automatic backport of pull request #330 done by Mergify.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.11%. Comparing base (579509f) to head (000b9d2).
⚠️ Report is 33 commits behind head on humble.

Additional details and impacted files

@@           Coverage Diff           @@
##           humble     #332   +/-   ##
=======================================
  Coverage   59.11%   59.11%           
=======================================
  Files          28       28           
  Lines        1541     1541           
  Branches      839      839           
=======================================
  Hits          911      911           
  Misses        243      243           
  Partials      387      387           

Flag	Coverage Δ
unittests	59.11% <ø> (ø)

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