Initial support for style module media query variations

[bheston]

Pull Request

Description

Adding support for media query variations on style modules.

I put this in a feature branch so @khamudom can implement the high contrast styles.

Issues

Closes #89

Reviewer Notes

It was straightforward to add this functionality to Styles. I wanted to support Behavior closer, but Styles is intended to be an abstraction for it to work with tooling and other non-FASTElement components. This is potentially a grey area as hooking onto Styles provides a good place to do this, if it still makes sense that not everything conveyed in Styles is applicable for every potential output (like Figma).

Test Plan

We will need a full test pass of all components in Storybook.

Checklist

General

• [ ] I have included a change request file using $ npm run change
• [ ] I have added tests for my changes.
• [x] I have tested my changes.
• [ ] I have updated the project documentation to reflect my changes.
• [x] I have read the CONTRIBUTING documentation for this project.

Component-specific

• [ ] I have added a new component
• [ ] I have modified an existing component

⏭ Next Steps

Continue defining the forced colors high contrast styles.