Early beta release of adaptivecards NodeJS package

New features

New Adaptive Cards element: Carousel

Early sample cards can be found here.

Breaking Changes

Consumers of this package must apply CSS from the packaged adaptivecards-carousel.css stylesheet or ingest the adaptivecards-carousel.scss Sass definitions.

Known Issues/upcoming changes

#6739 - keyboard navigation issue with Carousel
#6737 - Designer styles for "dark mode" hosts need to be updated for Carousel
#6700 - move to using addEventListener for some eventing
#6699 - parse warnings should be logged via the SerializationContext and not console.warn
#6693 - reconcile Carousel styles with high contrast rendering