added tfignore for VS and TFS

.tfignore

@@ -0,0 +1,53 @@
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+
+# Build results
+bin
+obj
+
+#include nuget executable
+!NuGet.exe
+
+#nuget packages directory
+packages
+
+#include package target files which may be required for msbuild
+!packages/*.targets
+
+# ReSharper
+_ReSharper*/
+*.ReSharper
+
+# TeamCity
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.Publish.xml
+*.pubxml
+
+# Backup & report files from converting an old project file to a newer
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# Windows image file caches
+Thumbs.db
+ehthumbs.db
+
+# Folder config file
+Desktop.ini
+
+# VS 2015 folder
+.vs
+
+# .idea folder?
+.idea