New functions
lw:unicode-char-equal
,
lw:unicode-char-not-equal
,
lw:unicode-char-lessp
,
lw:unicode-char-not-lessp
,
lw:unicode-char-greaterp
and
lw:unicode-char-not-greaterp
compare characters similarly to
cl:char-equal
etc, but using Unicode's simple case folding rules.