Sha1 for occurrenceID

[mcoupremanne]

I could not find a way to load the sha1 extension with Rsqlite:
Using:
fulcrum_id||'-'||scientificName
instead of:
fulcrum_id||'-'||substr(sha1(scientificName),1,5)
by default. Any other proper option?

can run the code out of R to have sha1 if no other way but it makes it less repeatable