Issue 94 - Visual Studio Template for Exercism

This fixes #94 

I added instructions on how to use the Visual Studio template to all language docs that are supported. For the languages that are commonly developed in Visual Studio like C# and F#, I placed the documentation inline with the other Visual Studio information. For the other languages where Visual Studio would not be typically used, I added the information near the end right before the references and links.
Thanks. I will fix it in the morning. This page went so deep with the headers that it became hard to read so I moved them all up one to look more like the C++ page that has level-1 headers for each section. Would you like me to move all of them down 1 level while I am at it?