Issue title: Add possibility to chose crosshairMarker color, so it will be independent from line-series color
 Issue body: Solution that would be nice its additional field "crosshairMarkerColor" to addLineSeries settings
```
const lineSeries = chart.addLineSeries({
    crosshairMarkerVisible: true,
    crosshairMarkerRadius: 6,
    crosshairMarkerColor: '#111',
});
```
 Comments: 
 Comment 0: I would like to give it a try
 Comment 1: The fix is just published in [3.3.0 version](https://github.com/tradingview/lightweight-charts/releases/tag/3.3.0).
{'source': 'GithubIssues', 'repo_name_with_owner': 'tradingview/lightweight-charts', 'issue_id': 552786744, 'repo_stars': 5519.0}