Feature Request - Add in Raw decoded formatting for the walk subcommand

[jrnt30]

First off, thank you for putting this together! It's helpful to have something that masks over some of the UX and gets away from my hacky Bash polling loop!

One feature that would be appreciated is a --raw flag for the walk subcommand. Providing it, the tool would then only be piping out the base64 decoded values of the payload instead of the pretty formatting you have now.

This would make it simpler to copy/paste some of the payloads.