Add API coverage for javax.xml.{datatype,namespace,parsers}

API list:
 * javax.xml.datatype.DatatypeConfigurationException.DatatypeConfigurationException()
 * javax.xml.datatype.DatatypeConfigurationException.DatatypeConfigurationException(java.lang.String, java.lang.Throwable)
 * javax.xml.datatype.DatatypeConfigurationException.DatatypeConfigurationException(java.lang.Throwable)
 * javax.xml.datatype.DatatypeConstants.Field.getId()
 * javax.xml.datatype.XMLGregorianCalendar.getMillisecond()
 * javax.xml.datatype.XMLGregorianCalendar.setTime(int, int, int)
 * javax.xml.datatype.XMLGregorianCalendar.setTime(int, int, int, int)
 * javax.xml.datatype.XMLGregorianCalendar.setTime(int, int, int, java.math.BigDecimal)
 * javax.xml.namespace.QName.QName(java.lang.String)
 * javax.xml.namespace.QName.getNamespaceURI()
 * javax.xml.namespace.QName.getPrefix()
 * javax.xml.parsers.DocumentBuilder.getSchema()
 * javax.xml.parsers.DocumentBuilderFactory.getSchema()
 * javax.xml.parsers.DocumentBuilderFactory.newInstance(java.lang.String, java.lang.ClassLoader)
 * javax.xml.parsers.DocumentBuilderFactory.setSchema(javax.xml.validation.Schema)

Bug: 200273920
Test: atest CtsLibcoreTestCases:libcore.javax.xml.datatype.{\
            DatatypeConfigurationExceptionTest,DatatypeConstantsTest,\
            XMLGregorianCalendarTest}
      atest CtsLibcoreTestCases:libcore.javax.xml.namespace.QNameTest
      atest CtsLibcoreTestCases:libcore.javax.xml.parsers.{\
            DocumentBuilderFactoryTest,DocumentBuilderTest}
Change-Id: I77d19b46debd6aa74cf24d82d7ef9ab3a27890e5
6 files changed