FuncName given a runtime function spec returns a short function name in format `<package name>.<function name>` or if the function has a receiver in format `<package name>.(<receiver>).<function name>`.

Returns Caller information on the first frame in the stack trace.

Returns the current goroutine id logrus.Infof("[%d] Info about this go routine", stack.GoRoutineID()).

Creates a new Stack{} struct from current stack minus 'skip' number of frames.

stack represents a stack of program counters.