Returns true if two xs:hexBinary values contain the same octet
sequence.
xs:hexBinary
values.op:hexBinary-equal( $value1 as xs:hexBinary,$value2 as xs:hexBinaryxs:booleanThe function returns true if $value1 and $value2
are of the same length, measured in binary octets, and contain the same octets in the
same order. Otherwise, it returns false.