The Hawks should fear no foe in the NBA’s play-in tournament. Their 15-9 record since Feb. 15 includes eight quality wins and really only three bad losses. The Hawks have the NBA’s fifth-best point differential over the past two weeks. They have some significant flaws, but the Hawks have a good chance of getting through to the playoffs with Trae Young as the engine for the Eastern Conference’s best offense. Still, some matchups are better than others for the Hawks. They’d like to see the Cavaliers. The Hawks beat Cleveland three out of four times this season, including a 131-107 drubbing March…