EDIT

ref #7549 Add quant statistic tooltip to character matrix

ref #7549 Refactoring

ref #7549 Implement historgram tooltip for categorical data

ref #7509 Enhance aggregation dialog

ref #7509 Add "Aggregate" button to character matrix

• aggregation will create a description on the common parent taxon of all taxa included in the descriptive data set OR the chosen taxon of the selection dialog

ref #7509 Add prototype aggregation function to character matrix

Refactor CharacterMatrix code

• extract bottom toolbar composite