Make use_list param configurable in Connector

[artembo]

By default use_list parameter tells msgpack to unpack array to
Python's list which is not hashable and can not be used as a dict keys
and sets elements. Django expects the response rows to be tuples
because it will be used in python set() [1]

Need to make it configurable to let the user choose which type of rows
can be fetched from the database response.

[1] https://github.com/django/django/blob/stable/3.0.x/django/contrib/auth/management/__init__.py#L72