SES-1736 : Temporarily add test name to standard error before each test
SES-1736 : Add hex utility methods to ASCIIUtil
SES-1736 : Start mapping directly from the Turtle Grammar

If there is a direct mapping from the grammar to methods in TurtleUtil
it will make things easier to debug. The current code is close but not
quite as precise a mapping.
SES-1736 : Start using new method for namespace verification