Add hisat2 recipe for hg38.
Add hisat2 recipe for hg38.

rchekaluk/cloudbiolinux,chapmanb/cloudbiolinux,joemphilips/cloudbiolinux,joemphilips/cloudbiolinux,joemphilips/cloudbiolinux,rchekaluk/cloudbiolinux,chapmanb/cloudbiolinux,rchekaluk/cloudbiolinux,chapmanb/cloudbiolinux,joemphilips/cloudbiolinux,rchekaluk/cloudbiolinux,chapmanb/cloudbiolinux