SPRINGFIELD — John M. Bouman was nowhere near the Statehouse on Wednesday.But he still had a unique vantage point for President Barack Obama’s speech to state legislators.The president of the Sargent Shriver Center on National Poverty Law worked closely with former state Sen. Obama and was cited in the president’s speech as an example of a bygone era of friendlier politics.And as an attorney for plaintiffs in cases that have kept Medicaid dollars flowing during a state budget impasse, he is also …