Add config flow to zamg (#66469)

.coveragerc

CODEOWNERS

homeassistant/components/zamg/__init__.py

homeassistant/components/zamg/config_flow.py

homeassistant/components/zamg/const.py

homeassistant/components/zamg/coordinator.py

homeassistant/components/zamg/manifest.json

homeassistant/components/zamg/sensor.py

homeassistant/components/zamg/strings.json

homeassistant/components/zamg/translations/de.json

homeassistant/components/zamg/translations/en.json

homeassistant/components/zamg/weather.py

homeassistant/generated/config_flows.py

homeassistant/generated/integrations.json

requirements_all.txt

requirements_test_all.txt

tests/components/zamg/__init__.py

tests/components/zamg/conftest.py

tests/components/zamg/fixtures/data.json

tests/components/zamg/test_config_flow.py