Info file converted to info.yml. template.php converted to fontfolio.theme .
Twig: convert page, block and node template files to twig format.
Also added to d8 version the responsive styles and scripts from d7 fontfolio.
Issue #1850388 by red_eye : Modified fontfolio.js to fix disapearing of single first gallery box on narow screen width. Also fixed single spelling error, in fontfolio.css. This error occasionally influenced responsive images aspect ratio.