[material-next][Chip] Improve color prop usage and options

[DiegoAndai]

A gap to fill as the Material You specs do not specify how to use other colors for the chip component. How it works right now is similar to v5:

• If no color prop is provided, then the specs defined color is used:
  • outline color for the outlined variant
  • secondary color for the filled variant
  • surface container low color for the elevated variant
• If the color prop is provided, that one is used. Right now this only supports accent colors.

Points of improvement:

• Feels weird that when no color prop is provided, different colors are used for different variants. This is the less confusing way I could come up with on initial implementation but I think there should be a better way
• Supporting other colors? The difficult part here is that not all variants should support all colors
  • Supporting other surface container colors might be useful for the elevated variant
  • Supporting outline variant color might be useful for the outlined variant
  • Adding a "high-contrast" option which is similar to v5 might be useful for the filled and elevated variants, e.g. using the primary and onPrimary tokens instead of the primaryContainer and onPrimaryContainer colors
• Restricting colors? The color specs mention that chips should use only secondary color. That feels restrictive, but maybe an option we want to explore?