Finished all the BBOperatorsTest.java directional test functions.
Refactored tearDown and setUp before class methods on BBMasksTest.java
and BBOperatorsTests.java to call a AllTests.init() and
AllTests.destroy(). Forcing all the tests to initialize jDavid the same
way/order.
Also moved a buildRandomCharBoard() to AllTests.java and replaced all
the uses in BBOperatorsTest.java.