ctype-euc_kr.c:
ctype-gb2312.c:
  Adding specific well_formed_length functions
  for gb2312 and euckr, to allow storing characters
  which are correct according to the character set
  specifications but just don't have Unicode mapping.
  Previously only those which have Unicode mapping
  could be stored, while unassigned characters lead
  to data truncation.
Many files:
  new file