column_names not functioning [as expected]

[enze-chen]

There's a couple of issues I noticed with the column_names field that I'll just include here because I think they're linked.

Issue 1: client.models.get_data_view()

As it's currently implemented, this method does not specify the column_names parameter in the DataView object that it creates+returns. Therefore, the following code prints different things:

client = CitrinationClient(os.environ['CITRINATION_API_KEY'], 'https://citrination.com')
models_client = client.models
view_id = 7530
data_view = models_client.get_data_view(view_id)
print('Names of columns: {0}'.format([c.name for c in data_view.columns])) # as expected
print('Column_names: {0}'.format(data_view.column_names)) # empty

Issue 2: client.views

Not sure if I missed this somewhere, but I don't think views/ML configured using the DataViewsClient specifies column_names anywhere, either in the client or builder. If you change the view_id in the above code to 8001, which is the same mapping but created using the API instead of UI, you'll see None everywhere.

Don't know how often this parameter column_names will be accessed/used, but I wanted to point it out. Let me know if I overlooked a field somewhere.