Feature: #59384 - XML parser options for xml2tree()

See forge#59384

Description

GeneralUtility::xml2tree() gets an optional parameter: an array that can hold options for the parser. Those will simply be passed through to the PHP-function xml_parser_set_option().

GeneralUtility::xml2tree($xmlData, 999, array(XML_OPTION_SKIP_WHITE => 1));

Impact

It's just an optional parameter. If you don't specify it, simply no additional initialisation of the XML-parser will be done.