[libxml2]Add libxml2 library

libxml2/test/schemas/import1_0.xsd

@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+<!-- This one tests the document access strategy for <import> -->
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+	targetNamespace="http://FOO"
+	xmlns:foo="http://FOO"
+	xmlns:bar="http://BAR"
+	elementFormDefault="qualified">
+	<xsd:import namespace="http://BAR" />
+		
+	<!-- This document does not exist. -->
+	<xsd:import namespace="http://BAR" schemaLocation="import1_0bc.imp" />
+	<!-- This document is ok. -->
+	<xsd:import namespace="http://BAR" schemaLocation="import1_0.imp" />
+	<!-- This document will be skipped, since a schema for the namespace
+	     "http://BAR" was already imported. -->
+	<xsd:import namespace="http://BAR" schemaLocation="import1_0b.imp" />
+	
+
+	<xsd:element name="foo">
+		<xsd:complexType>
+			<xsd:sequence>
+				<xsd:element name="bar"/>								
+				<xsd:element ref="bar:bar.A"/>
+				<!-- The reference cannot be resolved since
+				     "import1_0b.imp" was skipped -->
+				<xsd:element ref="bar:bar.B"/>				
+			</xsd:sequence>	
+		</xsd:complexType>
+	</xsd:element>
+</xsd:schema>