units.py: Restructured to use a Quantity object for the units-tagged value and conversion functions quantity2str() and str2quantity() to convert between that and a raw string. Added convert() with basic support for removing units and passing through matching units. xml_func.py: _units: Added "to" attr. VegBIEN mappings: Remove units using new _units "to" attr instead of temporary workaround in _units.
units.py: Restructured to use a Quantity object for the units-tagged value and conversion functions quantity2str() and str2quantity() to convert between that and a raw string. Added convert() with basic support for removing units and passing through matching units. xml_func.py: _units: Added "to" attr. VegBIEN mappings: Remove units using new _units "to" attr instead of temporary workaround in _units.