Add var name to time-pick output curve information

[biagas]

Is your feature request related to a problem?

GetPlotInformation()["Curve"] will return the curve results of a time-query. However, there is no variable associated with it.

Also, 'SaveWindow' as curve will use generic 'curve1' label instead of variable name associated with the time curve.

[nDimensionalSpace]

@nDimensionalSpace

[biagas]

Simple attempt: include pipeline variable name in all time-query PlotInformation. That doesn't quite work for some time-queries like 2D surface area, where the probable desired name would be the name of the query or even simply 'surface area' instead of the currently plotted mesh name or variable name.