With the Season 3 debut of Empire just weeks away, the first two episodes of the Fox blockbuster’s second season today are at the center of a potential big-bucks class action lawsuit filed over filming at a Chicago juvenile detention center that left hundreds of underage inmates in "lockdown." "The Fox Defendants deliberately encouraged the Government Defendants to improperly place the JTDC on lockdown during the filming of Empire, for commercial benefit," says the…