(© Richard Hubert Smith) Ethel Smyth’s opera “The Wreckers” opened the Glyndebourne Festival Opera last weekend, receiving its first-ever performance in the original French – libretto by Henry Brewster – and with many savage cuts restored. Its journey has been a long one: Smyth was repeatedly thwarted by war, misogynistic attitudes, musical conservatism, and meddling conductors. For some context – {…}