[Feature] gauge color steps in {progress: itemStyle: color and borderColor}

### What problem does this feature solve?

introduce color segments (available in gauge axisLine) in gauge progress. Refer to [#15471](https://github.com/apache/echarts/issues/15471.)

Segments should look like this:

There has been an answer by @Ovilia on the issue linked above but that covers color stops in gauge.axisLine and not in gauge.progress.

### What does the proposed API look like?

```
progress: {
itemStyle: {
color: [
[0.25, 'green'],
[0.5, 'yellow'],
[0.75, 'red']
]
}
}
```
and accordingly for borderColor