Minimal Example to Read CheckoutSession Info from Stripe Payment Links with .NET

Note to self: It's pretty easy to get a Stripe CheckoutSession in .NET. I talked about writing a Chrome extension and integrating payment through Stripe a few months ago. Unfortunately the "what appears to be an amazingly well-written howto" wasn't, quite. So here's a quick bit of play with the Stripe API using .NET. This looks up information according to a "Checkout Session" id, which is what…