With Friday’s trade deadline just about upon the last-place Rangers — and additional deals still likely — Mike Sullivan believes his players have handled the past several weeks of uncertainty well.  “I think they’ve done a good job. I think they bring the right energy,” Sullivan said after Wednesday’s practice. “I’m probably stating the obvious, but I don’t think we’re unique to this. I think this is just part of the business.  Access the Rangers beat like never before Join Post Sports+ for