[libxml2]Add libxml2 library

libxml2/result/HTML/entities.html.sax

@@ -0,0 +1,18 @@
+SAX.setDocumentLocator()
+SAX.startDocument()
+SAX.startElement(html)
+SAX.startElement(body)
+SAX.startElement(p, tst='a&b', tst2='a&b', tst3='a & b')
+SAX.characters(
+a, 2)
+SAX.characters(&, 1)
+SAX.characters(b
+a&b
+a & b
+, 12)
+SAX.endElement(p)
+SAX.characters(
+, 1)
+SAX.endElement(body)
+SAX.endElement(html)
+SAX.endDocument()