Stacktras Library

Bryce: I feel like i write a lot of c r t p because it's a pretty simple and zero overhead way to a. A, ye, i think it's a great little library. There's some work um for future standards to m add support to make it easy for exceptions to sort of automatically, or on request, capture a stack trace. That's not going into see post plus 23, but hopefully it'll go in to see pust plus 26. Stood basic string contains just a member function that does what it sounds like which is a pretty nice utility function. We should just do all the ranges out rhythms right now.