Add copyright years for changes e50cee9, 0bc4f5e, dc6cb43
Add copyright years for changes e50cee9, 0bc4f5e, dc6cb43

Summary:
Add copyright years for changes e50cee9, 0bc4f5e, dc6cb43.
We forgot to add these changes to the copyright stanza.

Test Plan: Review.

Reviewers: pmaanen

Reviewed By: pmaanen

Differential Revision: https://dev.openmha.org/D658

HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA