Enable fan_mode setting support in Honeywell Climate component

Feature Requests
1

The upstream module for Honeywell (US) Climate support, somecomfort, includes the ability to set fan_mode. I trivially enabled (and successfully tested) it by adding this to components/honeywell/climate.py, in class HoneywellUSThermostat:

    def set_fan_mode(self, fan_mode: str) -> None:
        """Set fan mode."""
        if hasattr(self._device, ATTR_FAN_MODE):
            self._device.fan_mode = fan_mode
2

As a patch, with some additional required changes:

--- homeassistant/components/honeywell/climate.py	2019-06-07 23:47:09.000000000 -0700
+++ /usr/local/lib/python3.6/dist-packages/homeassistant/components/honeywell/climate.py	2019-06-10 11:24:55.198405091 -0700
@@ -10,7 +10,7 @@ from homeassistant.components.climate im
 from homeassistant.components.climate.const import (
     ATTR_FAN_MODE, ATTR_FAN_LIST,
     ATTR_OPERATION_MODE, ATTR_OPERATION_LIST, SUPPORT_TARGET_TEMPERATURE,
-    SUPPORT_AWAY_MODE, SUPPORT_OPERATION_MODE)
+    SUPPORT_AWAY_MODE, SUPPORT_FAN_MODE, SUPPORT_OPERATION_MODE)
 from homeassistant.const import (
     CONF_PASSWORD, CONF_USERNAME, TEMP_CELSIUS, TEMP_FAHRENHEIT,
     ATTR_TEMPERATURE, CONF_REGION)
@@ -249,6 +249,8 @@ class HoneywellUSThermostat(ClimateDevic
         supported = (SUPPORT_TARGET_TEMPERATURE | SUPPORT_AWAY_MODE)
         if hasattr(self._device, ATTR_SYSTEM_MODE):
             supported |= SUPPORT_OPERATION_MODE
+        if hasattr(self._device, ATTR_FAN_MODE):
+            supported |= SUPPORT_FAN_MODE
         return supported
 
     @property
@@ -383,6 +385,11 @@ class HoneywellUSThermostat(ClimateDevic
         if hasattr(self._device, ATTR_SYSTEM_MODE):
             self._device.system_mode = operation_mode
 
+    def set_fan_mode(self, fan_mode: str) -> None:
+        """Set the fan mode."""
+        if hasattr(self._device, ATTR_FAN_MODE):
+            self._device.fan_mode = fan_mode
+
     def update(self):
         """Update the state."""
         import somecomfort
3

Looks like this was accomplished (with a better implementation) in: