Check supported device before RequestPermission

[YZahringer]

When a new device is connected, RequestPermission is called without checking if the device is in AvailableDeviceInfo.

Call before RequestPermission or adapt DeviceManager.GetDevice method:

var id = new UsbSerialDeviceID(device.VendorId, device.ProductId);
var info = DeviceManager.FindDeviceInfo(id);
if (info == null)
{
    if (!DeviceManager.AllowAnonymousCdcAcmDevices || device.DeviceClass != UsbClass.Comm)
        return;
}