FIX; the "L" optional parameter for swapping endianess on used authentication key...

FIX;   the "L" optional parameter for swapping endianess on used authentication key.  It is now implemented for following commands.
"HF MFU INFO"
"HF MFU DUMP"
"HF MFU RDBL"
"HF MFU WRBL"

CHG;  I commented away the option to add the key to the dump, since it is not written in big-endian, like the data is on ULC. This needs to be addressed before it comes back. I like the idea of having keys inside the dumps on the correct places.