Convert nws integration to component configuration (#31398)

* convert nws to component configuration

* add more debug logging

* remove assumed state

* move initialization of data into init

* refactor update logic

* use forecast success for checking available entities

* Split unique_id into more usable pieces.

use a base_unique_id for each entry.  Add domain for signaling to entities.  Each entity in each platform can use base_unique_id to form individual unique_id's.

* Revert "move initialization of data into init"

This reverts commit 09eb0220469285b10f0500f5f6def67415931a81.

* add silver quality scale to manifest

* unsubscribe listener in will_remove_from_hass

* initialize _unsub_listener in __init__

* use async_on_remove

* remove scan interval from configuration

* Use better name

Co-Authored-By: J. Nick Koston <nick@koston.org>

Co-authored-by: J. Nick Koston <nick@koston.org>

tests/components/nws/conftest.py

@@ -0,0 +1,24 @@
+"""Fixtures for National Weather Service tests."""
+from unittest.mock import patch
+
+import pytest
+
+from tests.common import mock_coro
+from tests.components.nws.const import DEFAULT_FORECAST, DEFAULT_OBSERVATION
+
+
+@pytest.fixture()
+def mock_simple_nws():
+    """Mock pynws SimpleNWS with default values."""
+    with patch("homeassistant.components.nws.SimpleNWS") as mock_nws:
+        instance = mock_nws.return_value
+        instance.set_station.return_value = mock_coro()
+        instance.update_observation.return_value = mock_coro()
+        instance.update_forecast.return_value = mock_coro()
+        instance.update_forecast_hourly.return_value = mock_coro()
+        instance.station = "ABC"
+        instance.stations = ["ABC"]
+        instance.observation = DEFAULT_OBSERVATION
+        instance.forecast = DEFAULT_FORECAST
+        instance.forecast_hourly = DEFAULT_FORECAST
+        yield mock_nws