Add Demo site

[Serge-N]

There is need for a demo website for the components. This website may be included in the get started section.

[EisenbergEffect]

While I can't give details at this time, there is a plan to address this generally speaking. It's not being handled by my team so I don't have control over the timeline. But please know that something is in the works. If the outcome of that project is not sufficient for the Blazor community, we'll happily work with you to make something that is. Additionally, we're about to update these wrappers to the latest version of Fluent we've been working on. In conjunction with that, we do plan some improvements to our documentation.

[awentzel]

closed by #97