Update rs_id.json for converting the db_codes of /db_xref qualifier in insdc

Only db_codes available in Identifiers.org
   *  source:
   *    http://www.insdc.org/documents/dbxref-qualifier-vocabulary
   *  mapping data:
   *    https://docs.google.com/a/g.nig.ac.jp/spreadsheets/d/1j_wZgsjah4ETiNpRcxjr6g7zfU4mWVZuc6A2Ot6DCU0/edit#gid=0