set showTooltipMarker for single line

- [x] I have searched the [issues](https://github.com/antvis/f2/issues) of this repository and believe that this is not a duplicate.

### What problem does this feature solve?
like this example https://antv-f2.gitee.io/zh/examples/line/multiple#series
how to set the blue line showTooltipMarker: false while others true?

### What does the proposed API look like?
```
showTooltipMarker(type) {
return boolean
}
```

Start with the linked multiple-series line example and trace how tooltip markers are configured for each line. Determine whether the proposed showTooltipMarker(type) API can make the blue line return false while other series return true, and verify the behavior against the example before considering the issue done.

Written by the indexing model from the issue text.