function getEpState(ep, service, opts) {
		let item = store.get(ep.name);
		if (!item) {
			item = {
				ep,
				service,
				opts,
				count: 0,
				failures: 0,
				state: C.CIRCUIT_CLOSE,
				cbTimer: null
			};
			store.set(ep.name, item);
		}
		return item;
	}
Get Endpoint state from store. If not exists, create it.

@param {Endpoint} ep
@param {Service} service
@param {Object} opts
@returns {Object}