feat: polish icons, sync cf designs, provide more examples

source/_patterns/00-atoms/02-icons/icons.mustache

source/_patterns/01-molecules/02-cards/card-actions.mustache

..._patterns/01-molecules/17-thumbs/thumbs-inactive.mustache

source/_patterns/02-organisms/00-global/subnav.mustache

...-simplified-navbar/simplified-navbar-with-avatar.mustache

.../_patterns/02-organisms/08-event-feed/event-feed.mustache

source/_patterns/03-templates/cf2021/chairman.mustache

source/css/atoms/icons.pcss

source/css/style.pcss

source/css/templates/cf2021.pcss

source/icons/demo-files/demo.css

source/icons/demo.html

source/icons/fonts/pirati-ui.eot

source/icons/fonts/pirati-ui.svg

source/icons/fonts/pirati-ui.ttf

source/icons/fonts/pirati-ui.woff

source/icons/selection.json

source/icons/style.css

source/icons/style.scss

source/icons/variables.scss