Idea: `nlbcli anon` for automaticaly anonymizing sensitive data

[whoeverest]

Very often, while debugging, reviewing or documenting a feature, you want to show the output of a command; for example, see: #15.

However, since you're dealing with sensitive data, you have to hide information, like card numbers or balances.

It would be nice if you could do: nlbcli account ID balance | nlbcli anon and have the sensitive data detected and removed.

Another option would be to have a --anon flag which anonymizes the data before printing it. That would require the output to be structured though; the pipe option would work with any printed output.