Feature Request: Find the start of the function of a stack frame

[ReimuNotMoe]

It would be great if cpptrace can provide a standardized function to find the start of the function of a stack frame, just like _Unwind_FindEnclosingFunction.

This is very useful for checking if a certain function is in a cpptrace::raw_trace::frames programmatically.

Thanks in advance.

[jeremy-rifkin]

Hello thanks for opening this issue. This could be a cool feature though it would be tricky to implement and unfortunately might involve some interface duplication (e.g. cpptrace::get_raw_trace_with_function_starts or something along with an object to hold the result etc). I'll have to do some research to see how implementable this is with other back-ends, my expectation is that only a few could support it.