added affymetrix datasource
added affymetrix datasource



Former-commit-id: 19e81b3d1942e117e564e1227aece9f51aa2fcdb
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine