Data viz with Cloudflare Clef

Adds conditional formatting to any web table and uses a decision model, Jev by default or Clef, to work out which direction is better.

Renders the world as the models see it, comparing Clef, Clef-flash and Jev side by side.

Asks Jev, Clef, Clef-flash and Laya to label a world grid as land or water and scores the maps.