fix(gitignore): No longer ignore VSCode settings (#3477)

Author: phillip-haydon

packages/angular-cli/blueprints/ng2/files/gitignore

@@ -10,13 +10,19 @@
 
 # IDEs and editors
 /.idea
-/.vscode
 .project
 .classpath
 .c9/
 *.launch
 .settings/
 
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
 # misc
 /.sass-cache
 /connect.lock