more Schemas work added more tests coming from the spec. Daniel

* Makefile.am xmlschemas.c: more Schemas work
* test/schemas/* result/schemas/*: added more tests coming
  from the spec.
Daniel
diff --git a/test/schemas/length1_0.xsd b/test/schemas/length1_0.xsd
new file mode 100644
index 0000000..8a1ba0f
--- /dev/null
+++ b/test/schemas/length1_0.xsd
@@ -0,0 +1,11 @@
+<?xml version="1.0"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
+  <xs:complexType name="length1">
+    <xs:simpleContent>
+      <xs:extension base="xs:nonNegativeInteger">
+        <xs:attribute name="unit" type="xs:NMTOKEN"/>
+      </xs:extension>
+    </xs:simpleContent>
+  </xs:complexType>
+  <xs:element name="width" type="length1"/>
+</xs:schema>