The Knicks have signed free agent guard Jalen Harris, the team’s public relations department announced (via Twitter). The details of the agreement weren’t released, but it’s likely an Exhibit 10 deal designed to get Harris to play for New York’s G League affiliate. Harris, 24, was banned for one year from the NBA in July of 2021 for violating the terms of the anti-drug program. He appeared in just 13 games with the Raptors before that. Toronto drafted him No. 59 overall in 2021 after he played collegiately at Louisiana Tech and Nevada. Harris averaged 7.4 points in 13.2 minutes…