Add more design tokens for Card component (for coloring text)

[makisukurisu]

When theming my application I've noticed that there's no design token for Card component which would allow me to change just the p-card-title properties (like color of text just for the title).

I would propose to add (at least some of them), like:

• card.caption.color
• card.title.color
• card.content.color (and probably rename card.color to card.body.color)