KINGSTON, R.I. — Leading up to Opening Night at Madison Square Garden on Tuesday, the Rangers spent a couple of days as a team in Rhode Island. They left straight from their preseason finale in Boston and had a team dinner.  Access the Rangers beat like never before Join Post Sports+ for exciting subscriber-only features, including real-time texting with Mollie Walker about the inside buzz on the Rangers. tRY IT NOW On Sunday, players went golfing and to the shooting range before a team-