add mypy.ini

Author: mrodobbe

mypy.ini

@@ -0,0 +1,10 @@
+[mypy]
+ignore_missing_imports = True
+follow_imports = skip
+
+[mypy-rdkit-stubs.*]
+ignore_errors = True
+disable_error_code = syntax
+
+[mypy-rxn_insight.*]
+disable_error_code = assignment,import,operator,var-annotated,no-untyped-def,arg-type,union-attr,call-arg,attr-defined, return, return-value