added sub-address field, added coverage info (#2477)
added sub-address field, added coverage info (#2477)


slibby/openaddresses,davidchiles/openaddresses,tyrasd/openaddresses,mmdolbow/openaddresses,slibby/openaddresses,openaddresses/openaddresses,sabas/openaddresses,openaddresses/openaddresses,orangejulius/openaddresses,mmdolbow/openaddresses,sabas/openaddresses,orangejulius/openaddresses,orangejulius/openaddresses,davidchiles/openaddresses,sergiyprotsiv/openaddresses,sergiyprotsiv/openaddresses,slibby/openaddresses,openaddresses/openaddresses,mmdolbow/openaddresses,tyrasd/openaddresses,tyrasd/openaddresses,sabas/openaddresses,davidchiles/openaddresses,sergiyprotsiv/openaddresses