Build a mapping from dvmdostem names to PEcAn names, units, etc. The temunits should be (are) looked up from the dvmdostem output file's units attributes.
Source:R/pecan2dvmdostem_variable_mapping.R
vmap_reverse.RdThis data structure allows us to keep track of PEcAn output variables that might depend on more than one DVMDOSTEM files.