Update to Global/VisualStudioCode (#3201)

Added ignore for workspace files (*.code-workspace). They can be added in any directory, depending on the user's preferences.

Global/VisualStudioCode.gitignore

@@ -3,3 +3,4 @@
 !.vscode/tasks.json
 !.vscode/launch.json
 !.vscode/extensions.json
+*.code-workspace