Add a file to set space settings of VisualStudio automatically

Using the EditorConfig Extension http://visualstudiogallery.msdn.microsoft.com/c8bccfe2-650c-4b42-bc5c-845e21f96328 ,
VisualStudio could open the git-tfs solution with the good space configuration. Easier for new contributions! ;)

See http://editorconfig.org for more details
Merge pull request #321 from pmiossec/editorconfig

Add a file to set space settings of VisualStudio automatically