Add: Add a new function to parse XML data into an Element tree

Add a common function to convert bytes or str into a Element tree.

gvm/xml.py

@@ -5,7 +5,7 @@
 
 import sys
 from io import IOBase
-from typing import List, Optional, TextIO, Union
+from typing import AnyStr, List, Optional, TextIO, Union
 
 import defusedxml.lxml as secET
 from defusedxml import DefusedXmlException
@@ -24,6 +24,12 @@ def create_parser():
  return XMLParser(encoding="utf-8", huge_tree=True)
 
 
+def parse_xml(xml: AnyStr) -> Element:
+ parser = create_parser()
+ parser.feed(xml)
+ return parser.close()
+
+
 class XmlCommandElement:
  def __init__(self, element):
  self._element = element