Add configurable colorblind modes as a standard feature

## What problem does this solve or what need does it fill?

Color-blindness is common, and each game should have a solution to address this.

## What solution would you like?

We should address this by providing a common API for games to hook into. EA's newly released [Tunable Colorblindness Solution](https://github.com/electronicarts/Tunable-Colorblindness-Solution) looks like a promising base.

At first glance, this seems like it is probably most suitable for a fresh implementation as a post-processing shader to alter colors according to the specified parameters.

## What alternative(s) have you considered?

Use a different colorblindness approach.

Bake these changes into the asset pipeline?

## Additional context

The code is licensed under Apache 2.0. This shouldn't be an issue with a fresh implementation of the algorithms in Rust.

We should ensure that this is stored in a standalone crate if at all possible, allowing the rest of the ecosystem to reuse our work.