[TEST REQUEST] Windows Bluetooth LE build

[Lubomir I. Ivanov]

got a confirmation today that the only way to communicate with GATT
services on Windows / Qt (native API, not the the UWP) is to first go
to the Control Panel and ***manually pair the BLE devices via the
UI***.
there could be hacks for that, that we are not aware of, but Google
shows nothing.

this means that DC users that have not paired their devices will
experience errors in Subsurface.

if BLE is to be eventually supported on Windows, this has to be
documented and/or possibly a message has to be shown in the "Download
from DC" dialog in the lines of "please, pair your DC devices in
Control Panel first".

lubomir
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