Provide a public API for determining the outcome of a request from its response's status code #18150
Description
We currently have some very similar logic for determining the outcome of a request from its response's status code spread across RestTemplateExchangeTags, WebClientExchangeTags, WebFluxTags, and WebMvcTags. We should ensure this logic is consistent by pulling out a public Outcome abstraction that can be used by all four …Tags classes.