Add Typography Props Mixin

[CodeDraken]

When a component is primarily text ( i.e title, subtitle components ) it should allow typography classes to be passed as a boolean.

Example:

This would add the h5 class.

<CardHeader h5 />

Since this would apply to several components a mixin can be created to avoid repetition.

Things to include:

• Headers i.e h1
• Colors i.e text-gray
• Positioning i.e text-center

https://picturepan2.github.io/spectre/elements.html#typography

https://picturepan2.github.io/spectre/utilities.html