[Feature Request] introspection if colors are supported

[indietyp]

Ability to introspect the current override status.

(follow-up to #84)

Currently, one is already able to determine if colors are supported, but only through a "hack" what I'd like is a new function:

supports_color considers the override value and (might ?) mirror the API of the underlying supports-color crate. This is especially useful in cases where one would A) like to query the negative status, e.g. do something if colors are not supported and B) get more information, e.g. only execute X if truecolor is supported, but still take into account the globally set override.

What do you think? I'd be happy to draft up a PR and implement the functionality, but before that would like to know if this is something that the library should support.

How to currently get the status (sadly involves additional atomics, is cumbersome and requires alloc):

let supports_color = AtomicBool::new(false);
owo_colors::set_override(true);
format!("{}", x.if_supports_color(Stream::Stdout, |x| {
    supports_color.store(true, core::sync::atomic::Ordering::SeqCst);
    x
}));
supports_color.load(core::sync::atomic::Ordering::SeqCst)

[charliermarsh]

I would also find this useful coming from colored (which exposes should_colorize).