Include 'occurrenceStatus' in Symbiota DwC-A output

[mandrewj]

The darwin-core field 'occurrenceStatus' https://dwc.tdwg.org/terms/#dwc:occurrenceStatus is not included in the darwin core archives generated by Symbiota.

From the basisOfRecord field, GBIF infers that the occurrenceStatus is 'PRESENT" as opposed to "ABSENT"

This is relatively trivial for most Symbiota portals - but if observations or standardized survey data are ever to be published from Symbiota then 'absent' is a possibility.

In the meantime, if the basisofrecord is a preserved specimen - can the DwC-A output be updated to include "PRESENT" for the occurenceStatus field?