By Trevor Hunnicutt WASHINGTON, Jan 15 (Reuters) - The U.S. and Taiwan clinched a trade deal on Thursday that cuts tariffs on many of the semiconductor powerhouse's exports, directs new investments in the U.S. technology industry and risks infuriating China. The deal deepens the Trump ​administration's ties with Taipei at a critical time as China ratchets up pressure on the island and Washington has worked to ‌avoid an all-out trade war with Beijing. Under the long-negotiated deal, Taiwanese chipmakers ...