A woman arrested for filming outside a suburban Cook County courthouse got the go-ahead to pursue her claims that sheriff’s deputies violated her constitutional rights.In a written opinion last week, U.S. District Judge John Robert Blakey did not rule on the merits of the First and Fourth Amendment counts in the lawsuit Amanda Jane Bergquist filed against four deputies and other defendants.But Blakey held Bergquist had adequately stated claims that deputies retaliated against her for exercising her right to free …