replaced AdobeVFPrototype.abc.otf with a hinted (maually) & subroutinized copy
replaced expected results as well

make sure charstring/subrs not ending with endchar/return handled correctly
if no local subrs, skip serializing Subrs op in Private
misc fixes

no-desubroutinize option is disabled for now
code cleanup (esp. CFF1 width handling)
bug fixes & renaming

Also fixed FDSelect3_4::get_fd
Fixed test_subset_cff1_strip_hints (wrong font names!)

it was causing inconsistent Strings Index subset results

Repurposed FDMap as Remap then subclassed for remapping SIDs
misc code cleanup

fixed misc Charset bugs
added source file hb-ot-cff1.table.cc
renamed things for clarity & consistency