feat: implement local reporter mode (#126)

* implement local reporter mode

* simplify watcher class

* review changes

* do not update unknown status

* allow empty key patches via api

* fix some pylint warnings in tests

tests/ahriman/models/test_dependencies.py

@@ -0,0 +1,9 @@
+from ahriman.models.dependencies import Dependencies
+
+
+def test_from_json_view() -> None:
+    """
+    must construct and serialize dependencies to json
+    """
+    dependencies = Dependencies({"/usr/bin/python3": ["python"]})
+    assert Dependencies.from_json(dependencies.view()) == dependencies