Add tardigrade genomes to the CVMFS resource

[pkulzerUNC]

Per this Galaxy Help ticket, please add two tardigrade genomes (H. exemplaris and R. varieornatus) to the CVMFS resource.

Please see below for the information that you'll need. It wasn't entirely clear to me what the dbkey and id fields should be, so I used the Assembly name for both.

H. exemplaris:
dbkey: nHd_3.1
description: "Hypsibius exemplaris Z151"
id: nHd_3.1
fasta URL: https://www.ncbi.nlm.nih.gov/datasets/genome/GCA_002082055.1/
reference annotation link: https://www.ncbi.nlm.nih.gov/datasets/genome/GCA_002082055.1/

R. varieornatus:
dbkey: Rvar_4.0
description: "Ramazzottius varieornatus YOKOZUNA-1"
id: Rvar_4.0
fasta URL: https://www.ncbi.nlm.nih.gov/datasets/genome/GCA_001949185.1/
reference annotation link: https://www.ncbi.nlm.nih.gov/datasets/genome/GCA_001949185.1/

[pkulzerUNC]

I've updated the above fasta URL's so that all of the links point to NCBI rather than a mix of ENA and NCBI. Also, here are the date strings for both species (I saw that these were being included in the pull requests in this repo for adding the mouse and pig genomes):

H. exemplaris:
Apr. 2017 (nHd_3.1)

R. varieornatus:
Nov. 2016 (Rvar_4.0)