[autofit] Add support for Cherokee script. * src/autofit/afblue.dat: Add blue zone data for Cherokee. * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated. * src/autofit/afscript.h: Add Cherokee standard characters. * src/autofit/afranges.c: Add Cherokee data. * src/autofit/afstyles.h: Add Cherokee data.