add Mandatory Units of Measure
Created by: RomainNouvel
List of units of measure should be mandatory (for instance: m2 and not m² nor sqm). Check if we can use standard list of units / uri. How do we deal with it in GML
Created by: RomainNouvel
List of units of measure should be mandatory (for instance: m2 and not m² nor sqm). Check if we can use standard list of units / uri. How do we deal with it in GML