Initial commit of the authentication web component with demo page

packages/auth/.gitignore

packages/auth/README.md

packages/auth/favicon.ico

packages/auth/i18n.js

packages/auth/i18n/de/translation.json

packages/auth/i18n/en/translation.json

packages/auth/i18next-scanner.config.js

packages/auth/index.html

packages/auth/index.js

packages/auth/jsonld.js

packages/auth/package.json

packages/auth/rollup.config.js

packages/auth/utils.js

packages/auth/vars.js

packages/auth/vpu-auth-demo.js

packages/auth/vpu-auth.js