Update gitignore

-/[Ll]ibrary/
-/[Tt]emp/
-/[Oo]bj/
-/[Bb]uild/
-/[Bb]uilds/
-/Assets/AssetStoreTools*
+/Basic Socket Programming/[Ll]ibrary/
+/Basic Socket Programming/[Tt]emp/
+/Basic Socket Programming/[Oo]bj/
+/Basic Socket Programming/[Bb]uild/
+/Basic Socket Programming/[Bb]uilds/
+/Basic Socket Programming/Assets/AssetStoreTools*
 
 # Visual Studio 2015 cache directory
-/.vs/
+/Basic Socket Programming/.vs/
 
 # Autogenerated VS/MD/Consulo solution and project files
 ExportedObj/