treatment taxpub exporter; design

[myrmoteras]

consider building an exporter of taxpub treatments to SIBiLS

upstream issues:

• define the output (valid taxpub)
• define the QC rules needed
• revise Gatekeeper
• teach POA how to fix issues (if there are some specific issues)

[gsautter]

Building an XML export isn't as hard as it might seem, at least not on our end ... however, I'd first need to know where to export the treatments to, i.e., what the receiving end of the export data transfer will look like, which is for SiBiLS to define.