Add Natural Earth Cities and Natural Earth Lakes

[tsutterley]

naturalearth.countries would parallel the prior geopandas naturalearth_lowres dataset

thanks to @JessicaS11 for pointing out the missing geodatasets

[martinfleis]

Hey, thanks for the PR.

However, I will ask you to remove naturalearth.countries and hydrosheds (for different reasons).

Geodatasets has a strict policy of avoiding data reflecting contested political boundaries, so a dataset representing countries of the world will never be admitted.

Hydrosheds are out of scope due to the size of the data. We're aiming to provide links to data that are useful for learning and illustrative purposes. This dataset has 820MB, which significantly exceeds what I'd consider useful for such purpose.

I am potentially fine with keeping cities and lakes though, there's no harm in having those.

[tsutterley]

Makes perfect sense. Trimmed the json of those entries.

[martinfleis]

Thanks!