add ruff linting and py.typed

Author: dugalh

orthority/py.typed

@@ -50,11 +50,24 @@ packages = ['orthority']
 [tool.setuptools.dynamic]
 version = {attr = 'orthority.version.__version__'}
 
+[tool.setuptools.package-data]
+orthority = ['py.typed']
+
 [tool.black]
 line-length = 100
 skip-string-normalization = true
 
 [tool.ruff]
 line-length = 100
-lint = { extend-select = ['I'] }
 format = { quote-style = 'preserve' }
+
+[tool.ruff.lint]
+select = [
+    "B",  # flake8-bugbear
+    "E",  # pycodestyle error
+    "F",  # pyflakes
+    "I",  # isort
+    "UP",  # pyupgrade
+    "W",  # pycodestyle warning
+    "RUF"
+]