Integration with Rich

First, a great project to ease the validation.

However, I could not find anything to **customize the color of the text** itself to give out **contextual meaning** to the text.

Is it possible to add basic color support like the library, [Rich](https://github.com/willmcgugan/rich)?

I apologize if it is too much to ask.

The issue names no files, tests, or entry points; begin by locating where PyInputPlus produces user-facing text and review how its validation prompts are tested. Compare the requested contextual color support with Rich's documented behavior, then establish a scoped API and tests that define the supported output and confirm the feature is complete.

Written by the indexing model from the issue text.