merge m17n patch

add libwc

libwc/map/mk_hkscs_p2_txt.pl

@@ -0,0 +1,10 @@
+
+# gunzip -c www.unicode.org/Public/BETA/Unicode3.2/Unihan-3.2.0d2.txt.gz \
+# | perl mk_hkscs_p2_txt.pl \
+# | sort > private/hkscs_p2.txt
+
+while(<>) {
+	/^U\+([0-9A-F]{4,5})\s+kHKSCS\s+([0-9A-F]{4})/ || next;
+	($c, $u) = ($2, $1);
+	print "$c\t$u\n";
+}