“JLG is like a sun, as soon as you get too close to it, you burn. If you ignore it, you miss the light.” Respected Swiss director Thomas Imbach on the “God of Cinema” who, as both man and filmmaker, has kept him spellbound his whole life. Chancing upon images of the ailing grand master, he was inspired to set off on foot on a pilgrimage from Lakes Zurich to Geneva to pay tribut…