Add DevicePath to output tuple

[Ext3h]

While yielding Description / FriendlyName is certainly user friendly, it's actually close to useless when you have more than a single camera in your system with the same vendor / model etc.

The index with which the device is enumerated isn't stable either, and will inevitably result in mixups in between device restarts.

In this case, DevicePath is required to correctly identify the DirectShow devices.