Have fancy sound effects when spending/incoming transactions and when creating a wallet

[d4f5409d]

The sound of money, oh yes

Example: Nighthawk wallet

[Final-Phoenix]

+1

This would be one of those small things that make the experience

[anhdres]

To be frank, it's at the bottom of the to-do list but it's something I've thought about. As long as you can disable it (or enable it if we're purists) I don't see the downside. It's specially useful in vendor situations, when a distinctive sound at receiving signals to both parties the transaction is ok and the burrito has been paid.