update harfbuzz to 10.1.0

libs/harfbuzz/test/shape/hb-diff

@@ -0,0 +1,9 @@
+#!/usr/bin/env python3
+
+from hb_test_tools import *
+import sys, os
+
+if len (sys.argv) < 2:
+	sys.exit ("usage: %s FILES..." % sys.argv[0])
+
+ZipDiffer.diff_files (FileHelpers.open_file_or_stdin (f) for f in sys.argv[1:])