Fix gsGeometry::scale() to work also for dim != 3 (#360)
Fix gsGeometry::scale() to work also for dim != 3 (#360)

Co-authored-by: Angelos Mantzaflaris <7c07e4d046242bad800d3e5ae5e50278219938cd@users.noreply.github.com>
filiatra/gismo,filiatra/gismo