rename wikipedia _get_metrics_for_id to be more consistent w other providers
rename wikipedia _get_metrics_for_id to be more consistent w other providers

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