Add test for saddle points in row (#1427)
Add test for saddle points in row (#1427)

There is a test for multiple saddle points in a column, but there is no test for multiple points in a row. 

These changes rename the existing test to indicate it tests for saddle points in a column and adds a test for multiple points in a row.
exercism/xpython,jmluy/xpython,smalley/python,exercism/python,N-Parsons/exercism-python,exercism/xpython,smalley/python,behrtam/xpython,N-Parsons/exercism-python,exercism/python,behrtam/xpython,jmluy/xpython