Add Beer Glass Images

Create a mapping of beer style -> glass shape, and create vector images of each glass shape. Create a script to output the glass with all probable beer colors and in several resolutions, to be served as static files. Associate each recipe with such an image, and display it somewhere on the recipe page. This image should also be used when sharing a recipe on e.g. Facebook, which currently only shares a text blurb about the recipe.

The issue names no files, tests, or entry points. First map recipe association, recipe-page rendering, static-file generation, and social sharing, then confirm the beer-style/glass mapping and required colors and resolutions. Done means each recipe has the appropriate glass image, the generated static variants are served, and shared recipes include the image.

Written by the indexing model from the issue text.