Feature request - semantic typography classes for headings like .h1, .h2

[elisechant]

What I did

Sometimes you need to style heading tags to look like other heading tags but maintain their semantics. A common pattern is to provide .h1, .h2, .h3 etc in addition to raw element styling so I able to style an element like this:

<h2 className="h4">Widgets</h2>

What I expected to see

Refs in gov-au-ui-kit/assets/sass/components/_typography.scss to include heading classes as well as raw element styles, like: