Add Home Connect integration (#29214)

.coveragerc

CODEOWNERS

homeassistant/components/home_connect/__init__.py

homeassistant/components/home_connect/api.py

homeassistant/components/home_connect/binary_sensor.py

homeassistant/components/home_connect/config_flow.py

homeassistant/components/home_connect/const.py

homeassistant/components/home_connect/entity.py

homeassistant/components/home_connect/manifest.json

homeassistant/components/home_connect/sensor.py

homeassistant/components/home_connect/strings.json

homeassistant/components/home_connect/switch.py

homeassistant/generated/config_flows.py

requirements_all.txt

requirements_test_all.txt

tests/components/home_connect/__init__.py

tests/components/home_connect/test_config_flow.py