In the time CenterStage took to finally open, tenors turned to baritones. Ballet dancers trained, hit their peak and retired. And a huge Richmond riverfront music hall opened, closed, and is opening again with a mechanical bull.Patience is a virtuoso.The first meeting of Richmond CenterStage’s planners was on Sept. 11, 2001. And at one point or another over the past eight years and $73 million spent, the proposed expansion and face lift of the Carpenter Theatre was up in the air, down-sized, left out and dead to rights. That’s what made Saturday night oh-so-sweet for Richmond’s performing arts community, from performing...