Add functionality to manage board vid:pid and PCB rev
cmd/fuses.c
Compare a hexval to the fuse value and return pass or fail. Add a function to read the fuse value into memory
board/purism/librem5
Test the fuses to determine the PCB HW rev
We need this to fix https://source.puri.sm/Librem5/librem5-devkit-tools/issues/21