A new official paper wallet generator

[fnando]

Hi there!

I created a new paper wallet generator using stellar-hd-wallet as part of SBC. I think this project would be a really nice addition to Stellar's official tools, as paper wallets are a frequent topic on Reddit.

One nice addition would be also integrating it with account viewer (logging in using QR Code scanning and/or BIP39).

Let me know if this is something worth pursuing or not.