Nodemon problem matcher for VS Code

To use this, add the nodemon or nodemon-watch problem matcher to your tasks.json, as appropriate. For example:

{
  "version": "2.0.0",
  "tasks": [
    {
      "type": "npm",
      "script": "watch",
      "group": "build",
      "isBackground": true,
      "problemMatcher": "$nodemon",
      "label": "npm: watch"
    },
  ]
}