ignore typings directory

VisualStudio.gitignore

@@ -196,7 +196,6 @@ ClientBin/
 *.jfm
 *.pfx
 *.publishsettings
-node_modules/
 orleans.codegen.cs
 
 # Since there are multiple workflows, uncomment next line to ignore bower_components
@@ -231,6 +230,8 @@ FakesAssemblies/
 
 # Node.js Tools for Visual Studio
 .ntvs_analysis.dat
+node_modules/
+typings/
 
 # Visual Studio 6 build log
 *.plg