paste in a gene list, map to orthologs, return all data

[cmungall]

The UI may be fiddly, but we should at least allow people to do things like this via the command line. It shouldn't be hard using e.g. scigraph-python

[kshefchek]

Also see https://github.com/monarch-initiative/monarch-analysis/blob/master/exac/ortholog-phenotype-stats.py