Refactoring in the unit test utility framework:
 * Moved unit test utilities to the onlab-junit package under utils/junit
   - ImmutableClassChecker
   - TestUtils and TestUtilsTest

 * Added/ported unit test utilities from the older code
   - UtilityClassChecker and UtilityClassCheckerTest
   - ImmutableClassCheckerTest

 * Updated/fixed some of the pom.xml files in the context of the
   onlab-junit package:
   - Added <scope>test</scope>
   - Replaced hard-coded "1.0.0-SNAPSHOT" with "${project.version}"

Change-Id: Ie5f51ba401ca1748340f38848ab6bfc251964adc
17 files changed