Adding servers and wwwroot folder to test websites

Adding dependencies and commands for iis, web listener and khestrel to each
site.

Each website comes with a readme.md to 'anchor' the otherwise empty
folder. We have another work item tracking adding content to these.

Once VS sees a project with a wwwroot, it wants to assign a port for iis,
so I let it.
Update names of WebSite projects for consistency

Project/Assembly names are all like 'FeatureWebSite' root namespaces
updated accordingly. This makes processing all of the functional tests and
deploying the web sites much simpler.
Update WebAPI shim functional tests to use a header for payload

The issue is that responses to HEAD cannot have a body. When running these
tests on a real server, they break because the server throws when you try
to write to the body.
Update precompilation to use the library manager instead of relative
paths.

This website is written to assume that $pwd is always in the functional
tests directory when it's launched. This works fine for the functional
tests, but causes issues in many other contexts, including VS.
update comment about precompilation (cr feedback)
Changes to address IFileSystem.Watch method addition

Absorbs the new IFileSystem interface. This change is to just address the breaking change introduced in IFileSystem.
Razor has to do the necessary changes to subscribe to the Watch event for expiring the modified files.
Remove use of `Assert.DoesNotThrow()`
- no longer in xunit :smiley:
logging assemblies, controllers, and actions
style fixes, adding unit tests
removing LogFormatter