XSD should be obtained from package, not from source xml

[Asisyas]

dto/src/Reader/XmlReader.php

Line 53 in 86fc1ee

$schemaLocation = $document->getElementsByTagName('dto')[0]->getAttribute('xsi:schemaLocation');

Excepted:

• XSD should be get from src/Resource/Schema.
• The updated XSD must not break backwards compatibility