Fix parse_mld_xml.py to work both for pytest files and single tests

    with open(csv_file,'w') as outfile:

        for testcase in testcases:

            if testcase.find('.//skipped') == None:

                fulltestname = testcase.get('classname') + "::" + testcase.get('name')

                if testcase.get('file') == None:

                    fulltestname = testcase.get('classname').replace('.','/') + ".py::" + testcase.get('name')

                else:

                    fulltestname = testcase.get('file') + "::" + testcase.get('name')

                if testcase.find('.//property') == None:

                    mld_val = None

                else: