“Do I a-moose-you?” That seems to be what Peter Mansbridge is saying. It’s not that he’s on the horns of a dilemma. He’s providing a voice for Disney’s “Zootopia,” opening Friday in theatres everywhere. “It’s come to this Bill, I’m playing a moose,” Mansbridge told me with a laugh. The 67-year-old London-native has been CBC’s main national news anchor