Merge branch 'add-obs-start-time' into 'master'

CDB/LOFAR_ConfigDb.json

CDB/integrations/multiobs_ConfigDb.json

CDB/stations/common.json

CDB/stations/testenv_cs001.json

CDB/test_environment_ConfigDb.json

docker-compose/device-observation.yml

...e/http-json-schemas/definitions/observation-settings.json

sbin/run_integration_test.sh

tangostationcontrol/docs/source/observing.rst

...est/configuration/configDB/test_environment_ConfigDb.json

...tegration_test/configuration/test_device_configuration.py

...tegration_test/default/devices/test_device_observation.py

...n_test/default/devices/test_device_observation_control.py

...trol/tangostationcontrol/common/observation_controller.py

...tangostationcontrol/configuration/observation_settings.py

...stationcontrol/tangostationcontrol/devices/observation.py

...ontrol/tangostationcontrol/devices/observation_control.py

...stationcontrol/test/common/test_observation_controller.py

...oncontrol/test/configuration/test_observation_settings.py