EDIT

Make aggregation configurable:

• Consider literature values during aggregation #9795
• Consider default values during aggregation
• Deal with outliers etc.
• Improve error and batch size handling
• Correct rounding: #9123
• from #8713: Remove empty categorical data creation
• configuration for cloned descriptions (specimen & taxon descriptions)
• further tests (#8713) => a couple of more tests were implemented already
• measurement units if they are not equal (e.g. mm<->cm), needs model changes before