resursbank-ecommerce

ECOMPHP-318:

* Fixed errorhandler in the updatePaymentReference (this is an inheritage from woocommerce).
* Updated docblocks with trailing dots.
* Changed TODO-row for "keying in removeFromArray", might be critical in future release.
* Updated cleaning array with handling that seems to work. Added skipOnQuantityArray for cases like CREDIT/ANNUL.
* Private helper method added: getQuantityByArticle.
* Private helper method added: getMatchedQuantity.
* Sanitizer repatched.
* Reformatted paymentAnnul and fixed descriptions and how the orderlines should be handled on credit/annul.