Add config flow to Switchbot (#50653)

.coveragerc

CODEOWNERS

homeassistant/components/switchbot/__init__.py

homeassistant/components/switchbot/config_flow.py

homeassistant/components/switchbot/const.py

homeassistant/components/switchbot/coordinator.py

homeassistant/components/switchbot/manifest.json

homeassistant/components/switchbot/strings.json

homeassistant/components/switchbot/switch.py

homeassistant/components/switchbot/translations/en.json

homeassistant/generated/config_flows.py

requirements_all.txt

requirements_test_all.txt

tests/components/switchbot/__init__.py

tests/components/switchbot/conftest.py

tests/components/switchbot/test_config_flow.py