Add native ESPHome API (#265)

* Esphomeapi

* Updates

* Remove MQTT from wizard

* Add protobuf to requirements

* Fix

* API Client updates

* Dump config on API connect

* Old WiFi config migration

* Home Assistant state import

* Lint

esphomeyaml/components/time/homeassistant.py

@@ -0,0 +1,25 @@
+from esphomeyaml.components import time as time_
+import esphomeyaml.config_validation as cv
+from esphomeyaml.const import CONF_ID
+from esphomeyaml.cpp_generator import Pvariable
+from esphomeyaml.cpp_helpers import setup_component
+from esphomeyaml.cpp_types import App
+
+
+DEPENDENCIES = ['api']
+
+HomeAssistantTime = time_.time_ns.class_('HomeAssistantTime', time_.RealTimeClockComponent)
+
+PLATFORM_SCHEMA = time_.TIME_PLATFORM_SCHEMA.extend({
+    cv.GenerateID(): cv.declare_variable_id(HomeAssistantTime),
+}).extend(cv.COMPONENT_SCHEMA.schema)
+
+
+def to_code(config):
+    rhs = App.make_homeassistant_time_component()
+    ha_time = Pvariable(config[CONF_ID], rhs)
+    time_.setup_time(ha_time, config)
+    setup_component(ha_time, config)
+
+
+BUILD_FLAGS = '-DUSE_HOMEASSISTANT_TIME'