chore: import upstream snapshot with attribution

setup.cfg

@@ -0,0 +1,54 @@
+[flake8]
+extend-ignore = E203, E266, W503, F403, F821
+max-line-length = 120
+enable-extensions = E123,E133,E241,E242,E704,W505
+exclude =
+    .git
+    .tox
+    .eggs
+    __pycache__
+    tests/fixtures/*
+    docs/*
+    venv,.pytest_cache
+    build
+    src/promptflow-azure/promptflow/azure/_restclient
+    src/promptflow-azure/promptflow/azure/_models
+    src/promptflow-core/promptflow/core/_connection_provider/_models
+    src/promptflow/tests/test_configs/*
+import-order-style = google
+
+[mypy]
+ignore_missing_imports = True
+disallow_untyped_defs = True
+
+[mypy-pytest,pytest_mock]
+ignore_missing_imports = True
+
+[tool:pycln]
+quiet = True
+
+[black]
+line_length = 120
+
+[pycln]
+silence = True
+
+[isort]
+# we use check for make fmt*
+profile = "black"
+# no need to fmt ignored
+skip_gitignore = true
+# needs to be the same as in black
+line_length = 120
+use_parentheses = true
+include_trailing_comma = true
+honor_noqa = true
+ensure_newline_before_comments = true
+skip_glob = [
+        docs/**,
+        pipelines/**,
+        pytest/**,
+        samples/**,
+    ]
+known_third_party = azure,mock,numpy,pandas,pydash,pytest,pytest_mock,requests,setuptools,six,sklearn,tqdm,urllib3,utilities,utils,yaml,jsonschema,strictyaml,jwt,pathspec,isodate,docker
+known_first_party = promptflow