Mike Foltynewicz, the Astros’ 2012 Minor League Pitcher of the Year, and fellow righthander Asher Wojciechowski, who is arguably the Astros’ fastest rising prospect, were promoted a level Friday. Wojciechowski, the Class AA Corpus Christi Pitcher of the Month for April acquired from Toronto last year, is headed to Class AAA Oklahoma City. He was 2-1 with a 2.08 ERA at Corpus. “We really felt like Wojciechowski has excelled at Double-A,” general manager Jeff Luhnow said. “After we traded for him last year we sent him straight to Double-A. So he has the balance of last year plus the first month of this year. This first month was about as [...]