Add coordinator to vesync (#134087)

homeassistant/components/vesync/__init__.py

homeassistant/components/vesync/const.py

homeassistant/components/vesync/coordinator.py

homeassistant/components/vesync/entity.py

homeassistant/components/vesync/fan.py

homeassistant/components/vesync/light.py

homeassistant/components/vesync/sensor.py

homeassistant/components/vesync/switch.py

tests/components/vesync/common.py

...nts/vesync/fixtures/air-purifier-400s-detail-updated.json

.../components/vesync/fixtures/air-purifier-400s-detail.json

tests/components/vesync/fixtures/outlet-energy-week.json

tests/components/vesync/test_platform.py