Add forwardme to waypoints in otrc

[jpmens]

With randon rid

[ckrey]

We called it +follow

{
  "_type" : "waypoints",
  "waypoints" : [
    {
      "_type" : "waypoint",
      "desc" : "+follow",
      "lat" : 50.0,
      "lon" :6.0,
      "rad" : 50,
      "rid" : "67941d94-cbe6-11ee-909e-784f43542829",
      "tst" : 1707990110
    },
    ...
  ]
}
``