Replace Wyam with Statiq

[Foxtrek64]

1. Have your repository in Github or any source control been created at least 3 months?

Yes

2. The reason you think your library/framework/tooling/link is awesome?

Wyam, under the CMS category, has been deprecated and archived. The creator has a new library, based in NetCore, which is actively being maintained. It has all of the same features as Wyam but includes a slimmer codebase and speed improvements.

New library here: https://github.com/statiqdev/Statiq.Web

Deprecation message (from the Wyam readme)

Note This project is essentially archived. Wyam has been rebranded and rebooted as Statiq. New development is happening over at Statiq.Framework and Statiq.Web. If you have a cool feature request, please open them over there so I can make sure it's considered for Statiq. The issue tracker and code here will remain open in order to deal with any ongoing issues specific to Wyam.

3. Have your PR follows up with alphabet-ordering?

No PR submitted at this time.

3. Is it .NET Core or .NET Standard?
   .NET Core

4. Have you read through the README or issues list to make sure that your PR is not duplicated to any others?
   Yes