Provide support for **postLaunchTask** (like [postDebugTask](https://code.visualstudio.com/docs/editor/debugging#_launchjson-attributes) for launch configurations) property to launch a task at the end of testing. This attribute should be set to the name of a task specified in [tasks.json](https://code.visualstudio.com/docs/editor/tasks) (in the workspace's .vscode folder). _NOTE_: This would be the companion to [preLaunchTask](https://github.com/Microsoft/vscode-java-test/wiki/Run-with-Configuration#property-details).