Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo. Avoids needing to
repeatly update.
Also updates AUTHORS.txt from current repo with contributor names
While the bug has been fixes, the winding handling in the
SetArcGeometry() function isn't tested. This adds a regression
test on EDA_SHAPE, which is where the logic now lives.
Relates-To: https://gitlab.com/kicad/code/kicad/-/issues/15694