Visualization get_column_pair_plot: update parameter name to column_names

[npatki]

Environment Details

Please indicate the following details about the environment in which you found the bug:

• SDMetrics version: 0.7 and 0.8
• Python version: Any
• Operating System: Any

Error Description

The docs for utils.get_column_pair_plot mention that the column names should be given as a parameter column_names. This yields an error. The method seems to expect columns as the parameter name instead.

Expected Results

We should change the parameter to be consistent with the docs:

(a) We use columns_names(s) whenever the user is providing a string with the names, instead of the actual column data
(b) The other visualization method get_column_plot has the desired column_name so it would be consistent.