Consolidate mypy and pytest config into pyproject.toml

Author: elprans

MANIFEST.in

@@ -1,4 +1,4 @@
 recursive-include tests *.py
 recursive-include immutables *.py *.c *.h *.pyi
 include LICENSE* NOTICE README.rst bench.png
-include mypy.ini immutables/py.typed
+include immutables/py.typed

mypy.ini

@@ -4,3 +4,21 @@ requires-python = ">=3.6"
 [build-system]
 requires = ["setuptools>=42", "wheel"]
 build-backend = "setuptools.build_meta"
+
+[tool.pytest.ini_options]
+minversion = "6.0"
+addopts = "--capture=no --assert=plain --strict-markers --tb=native --import-mode=importlib"
+testpaths = "tests"
+filterwarnings = "default"
+
+[tool.mypy]
+incremental = true
+strict = true
+
+[[tool.mypy.overrides]]
+module = "immutables.map"
+ignore_errors = true
+
+[[tool.mypy.overrides]]
+module = "immutables._testutils"
+ignore_errors = true