Use three separate columns in describe for LatLongs

- As a user, I wish I could use Woodwork's describe feature to see statistics for all the latitudes and longitudes individually in the describe dataframe. This means each LatLong column will produce three columns: `latlong_col`, `latlong_col_latitudes`, and `latlong_col_longitudes`.

Since latitude and longitude are floats, we'll get many more statistics calculated for them individually.