mappings/VegCore-VegBIEN.csv: Removed no longer used verbatimGrowthForm. Map to growthForm instead and translate growth form values to VegBIEN's growthform enum.
mappings/VegCore-VegBIEN.csv: Removed no longer used verbatimGrowthForm. Map to growthForm instead and translate growth form values to VegBIEN's growthform enum.