add varsome link to equiv IDs for HGNC genes
add varsome link to equiv IDs for HGNC genes

kshefchek/monarch-app,kshefchek/monarch-app,monarch-initiative/monarch-app,monarch-initiative/monarch-app,kshefchek/monarch-app,kshefchek/monarch-app,monarch-initiative/monarch-app,monarch-initiative/monarch-app,kshefchek/monarch-app,monarch-initiative/monarch-app