Genome search api
This PR provides two functionalities as following:
http://genome-search-api.review.ensembl.org/api/search/genome?species_taxonomy_id=9606 for taxonomy lookup
http://genome-search-api.review.ensembl.org/api/search/genome?query=hum for search
Jira: ENSWBSITES-2181
Edited by Mehrnaz Charkhchi