Add generate home assistant config command (#208)

* Add generate home assistant config command

* Lint

* Lint

esphomeyaml/components/light/binary.py

@@ -19,3 +19,8 @@ def to_code(config):
     rhs = App.make_binary_light(config[CONF_NAME], output)
     light_struct = variable(config[CONF_MAKE_ID], rhs)
     light.setup_light(light_struct.Pstate, light_struct.Pmqtt, config)
+
+
+def to_hass_config(data, config):
+    return light.core_to_hass_config(data, config, brightness=False, rgb=False, color_temp=False,
+                                     white_value=False)