Down in Miami, on the edge of the Little Haiti district a couple of miles west of Biscayne Bay, Northwestern Senior High School has long been one of the country’s most noted football factories. The school has churned out at least one All-Pro or Pro Bowl player each of the past three decades, which is why many alumni refer to it as something other than a high school. “We call it the University of Northwestern,’’ said Tampa Bay Buccaneers wide receiver prospect Tommy Streeter, a 2008 Northwestern graduate. The Bucs have been one of the school’s most recent beneficiaries. Linebacker Lavonte David played there with Streeter and cornerback Anthony Gaitor, who is back this summer for a second stint with Tampa Bay. But if Streeter’s first week of training camp work is any indication of what he can do for the Bucs, then they might want to think about assigning an area scout specifically to Northwestern practices and games. Originally an also-ran in the race for the third receiver spot behind projected starters Vincent Jackson and Mike Evans, Streeter has quickly emerged as the unquestioned early star of training camp.