Add config component and hassbian example panel (#5868)

* Add hassbian panel

* Rename to generic config panel

* Allow loading hassbian as test

* Add tests

* Update frontend

* Lint

* Lint

tests/components/config/test_init.py

@@ -0,0 +1,18 @@
+"""Test config init."""
+import pytest
+
+from homeassistant.bootstrap import async_setup_component
+
+from tests.common import mock_http_component
+
+
+@pytest.fixture(autouse=True)
+def stub_http(hass):
+    """Stub the HTTP component."""
+    mock_http_component(hass)
+
+
+def test_config_setup(hass, loop):
+    """Test it sets up hassbian."""
+    loop.run_until_complete(async_setup_component(hass, 'config', {}))
+    assert 'config' in hass.config.components