Merge pull request #1745 from tfardet/natural-earth-files

IO - Add .prj and .cpg to NaturalEarth unzipped files

Author: greglucas

lib/cartopy/io/shapereader.py

@@ -316,7 +316,7 @@ def zip_file_contents(self, format_dict):
         natural earth zip file.
 
         """
-        for ext in ['.shp', '.dbf', '.shx']:
+        for ext in ['.shp', '.dbf', '.shx', '.prj', '.cpg']:
             yield ('ne_{resolution}_{name}'
                    '{extension}'.format(extension=ext, **format_dict))