feat: Add icons for gas, water and energy (#90)

Author: noobun

README.md

@@ -57,7 +57,7 @@ switch | Only turning on/off, energy consumption and standby mode are not suppor
 automation* | Can be turned on/off.
 scene* | Execution
 script* | Execution
-sensor | Display values for the following sensor types: temperature, humidity, CO2, PM10, PM25 (others will be displayed but won't have a proper icon)
+sensor | Display values for the following sensor types: temperature, humidity, CO2, PM10, PM25, energy, gas and water (others will be displayed but won't have a proper icon).
 
 
 \* marked are not entities in the true sense of the word, but why have two tables

resources/icons/energy_meter.xcf

@@ -31,5 +31,8 @@
         <bitmap id="Humidity" filename="humidity.png" />
         <bitmap id="CO2" filename="co2.png" />
         <bitmap id="AirPM" filename="molecule.png" />
+        <bitmap id="EnergyMeter" filename="energy_meter.png" />
+        <bitmap id="WaterMeter" filename="water_meter.png" />
+        <bitmap id="GasMeter" filename="gas_meter.png" />
     </drawables>
 </resources>

resources/icons/gas_meter.xcf

@@ -319,6 +319,12 @@ class EntityListView extends Ui.View {
         drawable = WatchUi.loadResource(Rez.Drawables.CO2);
       } else if (sensorClass == Hass.SENSOR_PM) {
         drawable = WatchUi.loadResource(Rez.Drawables.AirPM);
+      } else if (sensorClass == Hass.SENSOR_ENERGY) {
+        drawable = WatchUi.loadResource(Rez.Drawables.EnergyMeter);
+      } else if (sensorClass == Hass.SENSOR_WATER) {
+        drawable = WatchUi.loadResource(Rez.Drawables.WaterMeter);
+      } else if (sensorClass == Hass.SENSOR_GAS) {
+        drawable = WatchUi.loadResource(Rez.Drawables.GasMeter);
       } else if (sensorClass == Hass.SENSOR_OTHER) {
         drawable = WatchUi.loadResource(Rez.Drawables.Unknown);
       }

resources/icons/water_meter.xcf

@@ -59,6 +59,9 @@ module Hass {
         SENSOR_HUMIDITY,
         SENSOR_CO2,
         SENSOR_PM,
+        SENSOR_ENERGY,
+        SENSOR_GAS,
+        SENSOR_WATER,
         SENSOR_OTHER
     }
 }