Creates the first test set, consisting of singleton TestSequences made
from each of the public Constructors (or enumerated constants) of the
test class.
JWalker is the top-level API class through which third-party software
communicates with the different lazy systematic unit testing
algorithms for unit testing Java classes.
Creates a subsequent test set, consisting of TestSequences from the
previous cycle which have been extended with every Method in the test
class's public interface.