brintOS SOM programming station

  som-program-f7                        program the STM32F7 SOM over JTAG
  som-program-f7 --help                 adapters, speed, dry-run
  brintos-selftest 99-som-station.test  check the station itself, no board needed

  /README.md                            what this machine is, and where things live
  /usr/share/brintos-som-station/       the full procedure, wiring included