Up until last Thursday night, San Francisco Giants pitcher Ryan Vogelsong had never hit a home run in a major league career that began in 2000 and has included long stints in the minor leagues and in the Japanese professional league. Then in a game against the Colorado Rockies in Denver, Vogelsong launched a ball over the right field fence for the First Home Run of His Major League Career. That is always a seminal, uniquely gratifying moment in the life of anyone who has ever dared to dream of being a big league ballplayer. As he circled the bases…