HOUSTON — Generations of Houston rappers were on parade Sunday night at World Series Game 5 here at Minute Maid Park. On one side of the field, Bun B was dipped in old-school Astros garb, proclaiming the Astros have what it takes to beat the Los Angeles Dodgers in this World Series. On the other side of the field was Travis Scott, the current star of Houston rap, whose jewelry was almost as loud as the crowd inside Minute Maid Park when the Astros are winning.