[unit test] add orangeocntrib test suite if any

id06workflow/app/test_.py

@@ -150,6 +150,8 @@ def main(argv):
     import id06workflow.test
     test_suite = unittest.TestSuite()
     test_suite.addTest(id06workflow.test.suite())
+    import orangecontrib.id06workflow.test
+    test_suite.addTest(orangecontrib.id06workflow.test)
     result = runner.run(test_suite)
 
     if result.wasSuccessful():