[Feature] Nested Card Component

[stolve]

What is the feature that you would like to propose?

The card component needs the ability to optionally not have a shadow. Also this component should have the ability like other cards to have or not have a header. The header for this nested card would be different than the standard which can be seen at the following invision mockup:
https://tangoe.invisionapp.com/console/share/DMVP29XU5RY/939271499

Example:
This would be necessary when nesting a card within another card or a modal. The shadow is only needed at the parent level card container.

Describe the solution you'd like

The ability for a developer to toggle the shadow as an option.