Add support for HomeKit (#12488)

* Basic Homekit support

* Added Temperatur Sensor
* Added Window Cover

* Code refactored

* Added class HomeAccessory(Accessory)
* Added class HomeBridge(Bridge)
* Changed homekit imports to relative, to enable use in custom_components
* Updated requirements
* Added docs
* Other smaller changes

* Changed Homekit from entity to class

* Changes based on feedback
* Updated config schema
* Add only covers that support set_cover_position

* Addressed comments, updated to pyhap==1.1.5

* For lint: added files to gen_requirements_all
* Added codeowner

* Small change to Wrapper classes

* Moved imports to import_types, small changes

* Small changes, added tests

* Homekit class: removed add_accessory since it's already covered by pyhap
* Added test requirement: HAP-python
* Added test suit for homekit setup and interaction between HA and pyhap
* Added test suit for get_accessories function

* Test bugfix

* Added validate pincode, tests for cover and sensor types

homeassistant/components/homekit/accessories.py

@@ -0,0 +1,55 @@
+"""Extend the basic Accessory and Bridge functions."""
+from pyhap.accessory import Accessory, Bridge, Category
+
+from .const import (
+    SERVICES_ACCESSORY_INFO, MANUFACTURER,
+    CHAR_MODEL, CHAR_MANUFACTURER, CHAR_SERIAL_NUMBER)
+
+
+class HomeAccessory(Accessory):
+    """Class to extend the Accessory class."""
+
+    ALL_CATEGORIES = Category
+
+    def __init__(self, display_name):
+        """Initialize a Accessory object."""
+        super().__init__(display_name)
+
+    def set_category(self, category):
+        """Set the category of the accessory."""
+        self.category = category
+
+    def add_preload_service(self, service):
+        """Define the services to be available for the accessory."""
+        from pyhap.loader import get_serv_loader
+        self.add_service(get_serv_loader().get(service))
+
+    def set_accessory_info(self, model, manufacturer=MANUFACTURER,
+                           serial_number='0000'):
+        """Set the default accessory information."""
+        service_info = self.get_service(SERVICES_ACCESSORY_INFO)
+        service_info.get_characteristic(CHAR_MODEL) \
+                    .set_value(model)
+        service_info.get_characteristic(CHAR_MANUFACTURER) \
+                    .set_value(manufacturer)
+        service_info.get_characteristic(CHAR_SERIAL_NUMBER) \
+                    .set_value(serial_number)
+
+
+class HomeBridge(Bridge):
+    """Class to extend the Bridge class."""
+
+    def __init__(self, display_name, pincode):
+        """Initialize a Bridge object."""
+        super().__init__(display_name, pincode=pincode)
+
+    def set_accessory_info(self, model, manufacturer=MANUFACTURER,
+                           serial_number='0000'):
+        """Set the default accessory information."""
+        service_info = self.get_service(SERVICES_ACCESSORY_INFO)
+        service_info.get_characteristic(CHAR_MODEL) \
+                    .set_value(model)
+        service_info.get_characteristic(CHAR_MANUFACTURER) \
+                    .set_value(manufacturer)
+        service_info.get_characteristic(CHAR_SERIAL_NUMBER) \
+                    .set_value(serial_number)