Fix TTF_Pack/Unpack 'v' to handle minor numbers such as 0x0001 (used by Silf)
Fix TTF_Pack/Unpack 'v' to handle minor numbers such as 0x0001 (used by Silf)

This fix causes version field of 0x00015000 to be represented as
"1.5000" instead of "1.5", but also makes it possible to round-trip
version fields such as 0x00030001 used by Silf. Also handles hex digits
if they appear in fraction, and treats major number as unsigned.

silnrsi/font-ttf,silnrsi/font-ttf