Implement showDatumInTooltip in TooltipOptions to allow hiding certain datums in regular TooltipRenderer.

[Zandor300]

I wanted to be able to hide datums with value 0 in my chart and couldn't find a way to do this with the current implementation, except write my own TooltipRenderer which I didn't feel like doing.

So this PR will add showDatumInTooltip in TooltipOptions to be able to filter datums that are shown in the regular TooltipRenderer.

@tannerlinsley Could you take a look?

Example usage

<Chart
    options={{
        data,
        primaryAxis,
        secondaryAxes,
        tooltip: {
            showDatumInTooltip: (datum) => {
                return datum.originalDatum.value !== 0;
            }
        }
    }}
/>

[tannerlinsley]

🎉 This PR is included in version 3.0.0-beta.57 🎉

The release is available on:

• npm package (@beta dist-tag)
• GitHub release

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