Merge branch 'develop' into 'feat/device-monitoring'

# Conflicts:
#   src/device/service/DeviceServiceServicerImpl.py
#   src/device/service/database/EndPointModel.py
#   src/device/service/database/KpiSampleType.py
#   src/device/service/drivers/emulated/EmulatedDriver.py
#   src/device/service/drivers/openconfig/templates/EndPoints.py
#   src/device/tests/Device_Emulated.py