Visual IL source code now available

I have upload the source code for the Visual IL language service and project to https://workspaces.gotdotnet.com/visualil. There are a few restrictions that I put on downloading the source code, mostly because I am planning on writing a new book on the sample and I need to be able to ship the sample with the book. But if you notice any issues or wish to contribute, I would be happy to hear from you.