Tests Cleanup: Fix missing calls to setUpClass/tearDownClass.

Continuation/Part 2 of https://gerrit.fd.io/r/#/c/17092/

Change-Id: Id0122d84eaf2c05d29e5be63a594d5e528ee7c9a
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>

test/test_classifier_ip6.py

@@ -26,6 +26,10 @@ class TestClassifier(VppTestCase):
         super(TestClassifier, cls).setUpClass()
         cls.acl_active_table = ''
 
+    @classmethod
+    def tearDownClass(cls):
+        super(TestClassifier, cls).tearDownClass()
+
     def setUp(self):
         """
         Perform test setup before test case.
@@ -288,6 +292,14 @@ class TestClassifier(VppTestCase):
 class TestClassifierIP6(TestClassifier):
     """ Classifier IP6 Test Case """
 
+    @classmethod
+    def setUpClass(cls):
+        super(TestClassifierIP6, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(TestClassifierIP6, cls).tearDownClass()
+
     def test_iacl_src_ip(self):
         """ Source IP6 iACL test
 
@@ -389,6 +401,14 @@ class TestClassifierIP6(TestClassifier):
 class TestClassifierIP6UDP(TestClassifier):
     """ Classifier IP6 UDP proto Test Case """
 
+    @classmethod
+    def setUpClass(cls):
+        super(TestClassifierIP6UDP, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(TestClassifierIP6UDP, cls).tearDownClass()
+
     def test_iacl_proto_udp(self):
         """ IP6 UDP protocol iACL test
 
@@ -524,6 +544,14 @@ class TestClassifierIP6UDP(TestClassifier):
 class TestClassifierIP6TCP(TestClassifier):
     """ Classifier IP6 TCP proto Test Case """
 
+    @classmethod
+    def setUpClass(cls):
+        super(TestClassifierIP6TCP, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(TestClassifierIP6TCP, cls).tearDownClass()
+
     def test_iacl_proto_tcp(self):
         """ IP6 TCP protocol iACL test
 
@@ -661,6 +689,14 @@ class TestClassifierIP6TCP(TestClassifier):
 class TestClassifierIP6Out(TestClassifier):
     """ Classifier output IP6 Test Case """
 
+    @classmethod
+    def setUpClass(cls):
+        super(TestClassifierIP6Out, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(TestClassifierIP6Out, cls).tearDownClass()
+
     def test_acl_ip_out(self):
         """ Output IP6 ACL test
 
@@ -698,6 +734,14 @@ class TestClassifierIP6Out(TestClassifier):
 class TestClassifierIP6MAC(TestClassifier):
     """ Classifier IP6 MAC Test Case """
 
+    @classmethod
+    def setUpClass(cls):
+        super(TestClassifierIP6MAC, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(TestClassifierIP6MAC, cls).tearDownClass()
+
     def test_acl_mac(self):
         """ IP6 MAC iACL test