Add label for natural=beach

[HolgerJeromin]

Please render the name-tag for beaches (natural=beach) for nodes and areas. The area names were lost with dropping the catch all. example:
http://www.openstreetmap.org/way/143585400

regression proof :-)
http://bl.ocks.org/tyrasd/raw/6164696/#15.00/51.8159/4.0655

thanks

[finetjul]

After a quick look (I'm new here), it seems that the following could be added here: https://github.com/gravitystorm/openstreetmap-carto/blob/master/amenity-points.mss#L575

[natural = 'beach']::natural {
    [zoom >= 16] {
      text-name: "[name]";
      text-size: 12;
      text-fill: #000;
      text-face-name: @book-fonts;
      text-halo-radius: 1;
      text-wrap-width: 10;
    }
  }

I did not try though, it was just by looking at the code (and maybe the text and halo color could be other than black/white but more yellow-ish)