add scripts to generate JSON and key bin files

[scourge411]

Since I don't have a proxmark, I only can generate bin files. Seems these might be useful?

[queengooborg]

Hey there! Thanks for doing this -- truthfully though, I had forgotten about this PR and ended up creating convert.py to do these same functions... Sorry about that, I didn't mean to step on any toes in doing so!

Since that script's now in place, would you be interested in merging these scripts with that one? The key file generation isn't quite working right in that script so I disabled it, if you're down to take a look at it, that would be great!

[scourge411]

So I merged the scripts, moved all the files that didn't match the naming format, fixed all the key blobs (some were 12 bytes too long, many were missing B keys), generated all the missing files (nfc/json) and added the output from a "parse.py" to each dir so there's a human readable format in there.

If you don't want all that, feel free to close this PR and I can open a new one with just the script changes again.

[queengooborg]

Thank you!

To keep the scope of the PR minimal so that it can get reviewed and merged quicker, let's keep this PR to just the script changes, and create a separate PR for key fixes and file generation. Let's also create a separate PR for adding the output of parse.py -- I'm not certain I want to do that as I'm trying to refrain from adding anything purely auto-generated, but I'm open to convincing!

[scourge411]

closing and re-opening smaller ones