Amazonite::Core::XMLValue
Scalar (de)serialization helpers for the XML-bodied protocols' generated
from_xml/to_query_params/build_xml model methods - awsQuery and
restXml both encode every scalar as plain text (form value or XML element
content), so these just centralize the text <-> Crystal-type conversion for
the handful of non-String primitive types (JSON has its own separate
converters in converters.cr, since its wire representation differs, e.g.
numbers/bools aren't quoted text there).