Add more static checks and move to separate file to match main repo

misc/scripts/mypy.ini

@@ -0,0 +1,11 @@
+[mypy]
+ignore_missing_imports = true
+disallow_any_generics = True
+pretty = True
+show_column_numbers = True
+warn_redundant_casts = True
+warn_return_any = True
+warn_unreachable = True
+
+namespace_packages = True
+explicit_package_bases = True