feat: Support Home Assistant water device_class (#18066)

This should be sufficient for https://www.zigbee2mqtt.io/devices/ZVG1.html to be water_consumed sensor to be usable in Energy dashboard (water section).

Co-authored-by: Koen Kanters <[email protected]>

Author: kamaradclimber

lib/extension/homeassistant.ts

@@ -732,6 +732,10 @@ export default class HomeAssistant extends Extension {
                     entity_category: 'diagnostic',
                     state_class: 'measurement',
                 },
+                water_consumed: {
+                    device_class: 'water',
+                    state_class: 'total_increasing',
+                },
                 x_axis: {icon: 'mdi:axis-x-arrow'},
                 y_axis: {icon: 'mdi:axis-y-arrow'},
                 z_axis: {icon: 'mdi:axis-z-arrow'},