The Post’s Marc Berman takes a look at the Knicks’ training camp roster. Camp opens on Monday: Pos., Player, Age, Ht., Wt. PG, Kadeem Allen, 26, 6-3, 215 On two-way contract, showed grit, shotmaking (46.1 FG percentage) in 19 games late last season. SG/SF, RJ Barrett, 19, 6-7, 200 The Duke rookie phenom once thought...
