fontHorizontalScale on a font, and xfa-font-horizontal-scale in rich text,
condense the glyphs; PdfCraft ignored both, so condensed labels were laid
out at full width and overflowed or wrapped where the form fits them on
one line. Text is now measured at its scale and written with Tz, in a
graphics state of its own. Field values keep full width: the forms layer
draws them, and its appearances have no horizontal scaling.