add free_fulltext_url for figshare
add free_fulltext_url for figshare

total-impact/total-impact-core,total-impact/total-impact-core,total-impact/total-impact-core,total-impact/total-impact-core,Impactstory/total-impact-core,Impactstory/total-impact-core,Impactstory/total-impact-core,Impactstory/total-impact-core