Fix nanoprop firmware version bug and add function to reset registers
The nanoprop sim returns 0x43 instead of 151 that the OBCSW expects it to. Also, OBCFSW tests should be able to reset all registers to their default values.
The nanoprop sim returns 0x43 instead of 151 that the OBCSW expects it to. Also, OBCFSW tests should be able to reset all registers to their default values.