Hang on to any of the new Newfoundland quarters. If you have them, they may be worth much more than 25 cents.The Canadian Mint announced today that it is recalling all of the Newfoundland quarters that are part of its program featuring quarters from each province. ""We are recalling all the new Newfoundland quarters that were recently issued,"" Canadian Mint Deputy Minister Jack Shackleford said Monday. ""This action is being taken after numerous reports that new quarters will not work in parkin…