Facility to display all om2:Units
We need a way to make it easier for user groups to pick the standardized Units they want for their use. It doesn't have to be more than a spreadsheet for now, although it could be. First step is to gather all the OM2 units into one place, with the data fields we want, plus hopefully a way to drill into it (a couple ways are available in OM2). Some help provided by them: https://github.com/HajoRijgersberg/OM/issues/68.