Added helper function getAttrOrDefault. #243
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The function getAttrOrDefault(xml::Element e, xml::XmlChar attr_name, T default_value) will return the attribute converted to to type T but if it is not found it will return default_value. When building new detectors supplying this is useful for supplying default attribute values.
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BEGINRELEASENOTES
getAttrOrDefault(defined inDDCore/include/XML/Helper.h)This function
getAttrOrDefault(xml::Element e, xml::XmlChar attr_name, T default_value)will return the attribute name, converted to to typeTbut if it is not found it will returndefault_value. When building new detectors supplying this is useful for supplying default attribute values.ENDRELEASENOTES