Update converter.py

Added support for INET and CIDR types by adding two additional conversion decorators on the convert_column_to_string function.

Author: scotmatson

graphene_sqlalchemy/converter.py

@@ -99,6 +99,8 @@ def convert_sqlalchemy_type(type, column, registry=None):
 @convert_sqlalchemy_type.register(types.UnicodeText)
 @convert_sqlalchemy_type.register(types.Enum)
 @convert_sqlalchemy_type.register(postgresql.ENUM)
+@convert_sqlalchemy_type.register(postgresql.INET)
+@convert_sqlalchemy_type.register(postgresql.CIDR)
 @convert_sqlalchemy_type.register(postgresql.UUID)
 @convert_sqlalchemy_type.register(TSVectorType)
 def convert_column_to_string(type, column, registry=None):