[Feature] On click add a static ToolTips

### What problem does this feature solve?

We have a requirement where a user can place multiple tooltips by clicking on a chart. example: If i am trying to see the exact value of a graph at time X and Y simultaneously, right now have to hover back and fro constantly.. if it is a simple map, there may be other ways, but for a complex time based data stream it would be extremely difficult.

so user can hover over and place a tooltip wherever they want, to dismiss , they can either click on the tooltip OR have a close button on the tooltip...

### What does the proposed API look like?

```
tooltip: {
multiple: true
}
```

The issue names no files, tests, or entry points. Start by locating the chart tooltip interaction and the tooltip configuration API, then determine how click placement and dismissal are currently handled. Done means supporting multiple click-placed tooltips through the proposed option, with a defined way to dismiss each one.

Written by the indexing model from the issue text.