nuand bladeRF firmware downloader (FX3)

 This empty package will, at the time of installation, download an appropriate
 firmware image for using the nuand bladeRF with a Cypress FX3 USB
 controller. The image will be downloaded from http://nuand.com/fx3/
 and saved to /usr/share/Nuand/bladeRF.
 .
 This bitstream will work for either the nuand bladeRF x40 or the x115.
 .
 Note that this will not upgrade the bladeRF itself. That can be done
 with the bladeRF-cli utility.