Add visual regression testing to storybook

[ssamaresh]

Visual regression testing can be a huge benefit ensuring that different layouts work for different device sizes and ensuring that stylings in your application are not breaking. It provides a great way to ensure that a component appears the way it should rather than asserting specific CSS rules, selectors, and HTML markup.
Visual Testing Reference

GOAL

The goal here is to make use of storybook addons and integrate visual testing for our components.

[ssamaresh]

Depends on #158