reverting parsing of SVG_Number to parse_svg_length for stop offset attribute
reverting parsing of SVG_Number to parse_svg_length for stop offset attribute

DmitrySigaev/gpac-sf,DmitrySigaev/gpac-sf,DmitrySigaev/gpac-sf,DmitrySigaev/gpac-sf,DmitrySigaev/gpac-sf,DmitrySigaev/gpac-sf