Add Card component

Based on the requirement in https://gitlab.com/gitlab-org/gitlab-ce/issues/63599, there's a need for a Card component to display purchasing options.

TODO

• Wrap bootstrap-vue card and subcomponents
• Address changes from Design discussion in gitlab-org/gitlab-services/design.gitlab.com#287 (closed)

Design

Upgrade (No Current Plan)	Upgrade (Active Current Plan)

Design documentation is addressed in gitlab-org/gitlab-services/design.gitlab.com#287 (closed)

Scenario to replace

• https://gitlab.com/gitlab-org/gitlab-ce/issues/63599
• Arguably the profile billing page should be updated to this.