Added prompt of user to confirm that FTDI device is the correct one to configure, and command line argument to bypass prompting
Added prompt of user to confirm that FTDI device is the correct
one to configure, and command line argument to bypass prompting

swift-nav/piksi_sample_grabber,cbeighley/piksi_sample_grabber,swift-nav/piksi_sample_grabber,cbeighley/piksi_sample_grabber