440226 Add xmlXIncludeProcessTreeFlagsData API

* xinclude.c include/libxml/xinclude.h: new function similar to
  xmlXIncludeProcessFlagsData but operating on a subtree
diff --git a/include/libxml/xinclude.h b/include/libxml/xinclude.h
index ba9c9b5..863ab25 100644
--- a/include/libxml/xinclude.h
+++ b/include/libxml/xinclude.h
@@ -89,18 +89,22 @@
 /*
  * standalone processing
  */
-XMLPUBFUN int XMLCALL	
+XMLPUBFUN int XMLCALL
 		xmlXIncludeProcess	(xmlDocPtr doc);
-XMLPUBFUN int XMLCALL	
+XMLPUBFUN int XMLCALL
 		xmlXIncludeProcessFlags	(xmlDocPtr doc,
 					 int flags);
-XMLPUBFUN int XMLCALL	
+XMLPUBFUN int XMLCALL
 		xmlXIncludeProcessFlagsData(xmlDocPtr doc,
 					 int flags,
 					 void *data);
-XMLPUBFUN int XMLCALL	
+XMLPUBFUN int XMLCALL
+                xmlXIncludeProcessTreeFlagsData(xmlNodePtr tree,
+                                         int flags,
+                                         void *data);
+XMLPUBFUN int XMLCALL
 		xmlXIncludeProcessTree	(xmlNodePtr tree);
-XMLPUBFUN int XMLCALL	
+XMLPUBFUN int XMLCALL
 		xmlXIncludeProcessTreeFlags(xmlNodePtr tree,
 					 int flags);
 /*