[Lens] Table dynamic coloring: control coloring for values outside range

[dej611]

Describe the feature:

The current implementation of dynamic coloring in Lens datatable computes the gradient and extends the coloring out on the extremes to all values outside the computed range.

A representation of the current implementation can be visualized with this palette component:

The green stop is set at beginning of the data range while the purple one at the max. Any value outside this range will inherit the green or purple color.
It would be nice to have more control over this kind of coloring behaviour, for instance letting the user decide whether color the values within the range or not.

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[flash1293]

Fixed by #95217