Added ability to add TaxDetail into Tax node (having multiple differe…

…nt tax rates)

Merge pull request #30 from FriendsOfCXML/feat/version-2

cXML Version 2.0.0 (PHP 8.2+)

Introduce an optional PSR Eventdispatcher for Processor

better to return the ItemOut when adding an Item

Merge branch 'main' of https://github.com/FriendsOfCXML/cxml-php

fix: fixed wrong description at adv pricing #minor (#32)

QuoteMessage::addItem

deploymentMode for Message

add phone field and children (#26)

* add phone field and children
* Address parameter issue in billTo

fixed order of elements