C14N tests integrated into LibXML2 test suite

* Makefile.am result/c14n/* test/c14n/*: C14N tests integrated
into LibXML2 test suite
diff --git a/result/c14n/without-comments/example-4 b/result/c14n/without-comments/example-4
new file mode 100644
index 0000000..19a2559
--- /dev/null
+++ b/result/c14n/without-comments/example-4
@@ -0,0 +1,9 @@
+<doc>
+   <text>First line&#xD;
+Second line</text>
+   <value>2</value>
+   <compute>value&gt;"0" &amp;&amp; value&lt;"10" ?"valid":"error"</compute>
+   <compute expr="value>&quot;0&quot; &amp;&amp; value&lt;&quot;10&quot; ?&quot;valid&quot;:&quot;error&quot;">valid</compute>
+   <norm attr=" '    &#xD;&#xA;&#x9;   ' "></norm>
+   <normId id="' &#xD;&#xA;&#x9; '"></normId>
+</doc>
\ No newline at end of file