Allow using decorators for Dashboard Widgets/Aggregation results

[drewmiranda-gl]

What?

Allow using decorators for Dashboard Widgets/Aggregation results

Why?

We have a very powerful decorator feature, however, this cannot be used with aggregations nor dashboard widgets.

Having flexibility to transform data on dashboards is very helpful. For example, renaming the display name of a field in a data table widget to make field names more friendly to use/read.

[drewmiranda-gl]

Note: This was asked for by a strategic customer, specifically "display name of a field in a data table widget"

[dennisoelkers]

Duplicate of #9507.