By Tom Polansek and Savyata Mishra (Reuters) -Smithfield Foods, the biggest U.S. pork processor, reported increased quarterly revenue and profits on Tuesday as sales prices climbed. The company, a majority-owned subsidiary of Hong Kong-based WH Group, raised the midpoint of its annual profit forecast range, sending its shares up 2.7% in early trading. Smithfield said average sales prices for its packaged meat, including bacon, sausage and hot dogs, climbed 9.2%, while prices for its fresh pork products ...