add setup.cfg to configure flake8 & pytest

Author: (Ian Stenbit)

setup.cfg

@@ -0,0 +1,33 @@
+
+[tool:pytest]
+filterwarnings =
+    error
+    ignore::DeprecationWarning
+    ignore::ImportWarning
+    ignore::RuntimeWarning
+    ignore::PendingDeprecationWarning
+    ignore::FutureWarning
+[flake8]
+max-line-length = 85
+per-file-ignores = **/__init__.py:F401
+
+ignore =
+    # Conflicts with black
+    E203
+    # defaults flake8 ignores
+    E121,E123,E126,E226,E24,E704,W503,W504
+    # Function name should be lowercase
+    N802
+    # lowercase ... imported as non lowercase
+    # Useful to ignore for "import keras.backend as K"
+    N812
+    # do not use bare 'except'
+    E722
+    # Escape characters check.
+    # Conflict with pytest error message regex.
+    W605
+
+[isort]
+known_first_party = keras_tuner,tests
+default_section = THIRDPARTY
+line_length = 85