Including the validation of creation of KPIs and their values to the OFC'22

Two main changes are made:

1. Including the validation of creation of KPIs and their values to the OFC'22 test set.
2. Consolidate imports and fixtures of the OFC'22 and ECOC'22 scenarios.

src/tests/ecoc22/tests/Fixtures.py

+# Copyright 2021-2023 H2020 TeraFlow (https://www.teraflow-h2020.eu/)
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import pytest
 from common.Settings import get_setting
 from compute.tests.mock_osm.MockOSM import MockOSM
-from context.client.ContextClient import ContextClient
-from device.client.DeviceClient import DeviceClient
 #from .Objects_BigNet import WIM_MAPPING, WIM_PASSWORD, WIM_USERNAME
 from .Objects_DC_CSGW_TN import WIM_MAPPING, WIM_PASSWORD, WIM_USERNAME
 #from .Objects_DC_CSGW_TN_OLS import WIM_MAPPING, WIM_PASSWORD, WIM_USERNAME
 
-@pytest.fixture(scope='session')
-def context_client():
-    _client = ContextClient()
-    yield _client
-    _client.close()
-
-@pytest.fixture(scope='session')
-def device_client():
-    _client = DeviceClient()
-    yield _client
-    _client.close()
-
 @pytest.fixture(scope='session')
 def osm_wim():
     wim_url = 'http://{:s}:{:s}'.format(