Added new tests and updated version of QKDDriver2 and Tools2

src/device/service/drivers/qkd/QKDDriver2.py

src/device/service/drivers/qkd/Tools2.py

...qkd/integration/test_external_qkd_retrieve_information.py

src/device/tests/qkd/unit/PrepareScenario.py

...device/tests/qkd/unit/retrieve_device_mock_information.py

src/device/tests/qkd/unit/test_application_deployment.py

src/device/tests/qkd/unit/test_qkd_configuration.py

src/device/tests/qkd/unit/test_qkd_error_hanling.py

src/device/tests/qkd/unit/test_qkd_mock_connectivity.py

src/device/tests/qkd/unit/test_qkd_security.py

src/device/tests/qkd/unit/test_qkd_subscription.py

src/device/tests/qkd/unit/test_qkd_unsubscription.py

src/device/tests/qkd/unit/test_set_new configuration.py