re-write findthisdevice plugin + add support for Windows

2 jobs for master in 14 minutes and 45 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #17158
linux kf5-qt5 qt5.12

00:06:44

34.0%
passed #17159
windows
windows kf5-qt5 qt5.13

00:08:01