Include GISAID EPI ISL and Genbank accessions in click box
Include GISAID EPI ISL and Genbank accessions in click box

If `gisaid_epi_isl` or `genbank_accession` exist as node attrs, these preempt normal use of `accession` and `url`.
nextstrain/auspice,nextstrain/auspice,nextstrain/auspice