DISCO: import CGC strain list

Wormbase does not appear to dump a list of all worm strains. So, we need to fetch it from the CGC to get them.
NIF id: nif-0000-00240

https://www.cbs.umn.edu/cgc/strains

From this, import the "Strain list: one big text file", which will require some scripting to transform into a table, or adapt the "obo" interop-style.

The important items are:

Strain
Species
Genotype
Description
Mutagen