util.sh: add should_interpolate func that returns 'no' with NotoNastaliqUrdu
util.sh: add should_interpolate func that returns 'no' with NotoNastaliqUrdu

googlei18n/noto-source,googlefonts/noto-source,googlefonts/noto-source,googlei18n/noto-source,googlefonts/noto-source,googlei18n/noto-source