Support for pins in binary info

[cromefire]

It seems picotool can read information about what pin does what from the info block. Would be super useful to have that supported by the binary info crate as well and doesn't look too dissimilar from the other info on the surface (not a C/C++/skilled low-level dev though).

[thejpster]

Sounds like a good idea. Do you want to try and make a PR?

[cromefire]

I think that's way beyond my skill level, I'm happy to get stuff working by adapting some samples... While I can see that the pins seem to be similar, I'm not sure how the address layout works there, neither in C, nor in rust.