Feature Request: Manage overflow in isMulti on a single line

[CharlesCoqueret]

I've run into a situation where I have a single line and multiple options to be picked.
In that case, the CSS "overflow: hidden" is working fine, however there is no visual indication of number of element hidden.

After numerous experiment, I reach this:

Reference: https://codesandbox.io/s/final-select-forked-6vx387

It would be great if this could be integrated in the component itself in a much better way than this approach.

For reference:
Looks like Ant design has such a feature: https://ant.design/components/select/#components-select-demo-responsive