PNG writes should honor PixelAspectRatio attribute
PNG writes should honor PixelAspectRatio attribute

micler/oiio,mcanthony/oiio,lgritz/oiio,OpenImageIO/oiio,bdeluca/oiio,sambler/oiio,YangYangTL/oiio,bdeluca/oiio,mcanthony/oiio,sambler/oiio,YangYangTL/oiio,sambler/oiio,cwilling/oiio,lgritz/oiio,cwilling/oiio,YangYangTL/oiio,micler/oiio,OpenImageIO/oiio,sambler/oiio,mcanthony/oiio,cwilling/oiio,OpenImageIO/oiio,YangYangTL/oiio,mcanthony/oiio,lgritz/oiio,micler/oiio,OpenImageIO/oiio,cwilling/oiio,lgritz/oiio,bdeluca/oiio,bdeluca/oiio,micler/oiio