Added Qaiain.UnitTests project.
Installed xUnit.net via NuGet.
Installed Unquote via NuGet.
Changed Qaiain.UnitTests AssemblyName to Grean.Qaiain.UnitTests.
Removed Library1.fs and Script.fsx files.
Changed Qaiain.UnitTests project RootNamespace to Grean.Qaiain.UnitTests.
Disabled documentation file generation for Debug configuration.