The New York Rangers have locked up another depth defenseman on a two-year contract extension, this time with Connor Mackey. Mackey signed with the team over the summer as a free agent on a one-year deal with an average-annual value of $775,000. In 36 games with the Wolf Pack this year, Mackey has registered 2 goals and 9 assists. He has been a somewhat consistent recall for the Rangers any time…