Add GO term created_by and creation_date into loader for GOlr

[kltm]

Add the created_by and creation_date into the ontology and annotation loads.

geneontology/amigo#507

[paolaroncaglia]

Thanks @kltm !

[paolaroncaglia]

@kltm
Hi, I know you were away, just wondering if there's any update on this please. For background, see AmiGO ticket linked above. Thanks! :-)
Paola

[kltm]

Unfortunately, the backlog is rather long, so possibly in the next few months; possibly sooner if the work on the loader begins again.

[paolaroncaglia]

@kltm
Thanks for your reply.