Fintech startup Revolut is launching a new feature called Payday. It is an alternative to credit card debt and short-term credit as it lets you unlock a portion of your wage early. If a business decides to integrate with Revolut, users can then access the feature from the financial super app directly. Right now, the feature is limited to businesses based in the U.K., but the company plans to launch it in the European Economic Area and the U.S. as well. That’s the trick — Payday isn’t going to be…