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.
The title of the page gets inserted as a level 1 header, so this would now give us multiple level-1 headers.