ZURICH, April 24 (Reuters) – Swiss National Bank Chairman Martin Schlegel said the outlook for Switzerland’s economy hinges on how long conflict-driven energy price pressures persist, warning that prolonged high prices could fuel inflation and weigh on growth. In an interview published in Friday’s edition of Swiss newspaper Neue Zuercher Zeitung, Schlegel said it was too early to say if there was a risk of stagflation, a period of sluggish or …