* Move contents of Microsoft.AspNetCore.Components.Services namespace to Microsoft.AspNetCore.Components
* Rename Components to Blazor
* Make Blazor server-side part of the shared framework.
Changes:
* Add support for a property, `IsAspNetCoreApp`, in the .csproj file of assemblies which are part of the shared framework.
* Remove unused dependencies
* Remove reference which have become part of 'netcoreapp3.0'