Adding release notes and enabling import order check

Enabling Flake8 library import order check,
adding release_notes, enabling stage-test failing by tox results.

Change-Id: I490b4cb3fe5904f54d84f0ce9b41fe91ec8b4f5d
Signed-off-by: aticig <gulsum.atici@canonical.com>
diff --git a/osm_common/msgbase.py b/osm_common/msgbase.py
index 49adcb8..80c5be5 100644
--- a/osm_common/msgbase.py
+++ b/osm_common/msgbase.py
@@ -15,11 +15,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import logging
 from http import HTTPStatus
-from osm_common.common_utils import FakeLock
+import logging
 from threading import Lock
 
+from osm_common.common_utils import FakeLock
+
 __author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"