Add more Progress / data bar components (or enhance Progress)

[techniq]

• [x] Progress bar
• [ ] Marker bar
• [ ] Delta bar
• [ ] Category bar

Examples

• https://www.tremor.so/docs/components/data-bars
• https://www.layerchart.com/docs/components/Legend
• https://primer.style/design/components/progress-bar

See also

• https://github.com/techniq/svelte-ux/issues/79