ATHENS, Ga. — Tom Crean stood by himself, leaning against the painted cinderblock wall of the tunnel underneath Section P at Stegeman Coliseum. Facing the court, the building was empty except for Georgia facilities personnel, who were busy sweeping, mopping and tidying up the 58-year-old arena an hour after the Bulldogs’ 75-68 loss to Tennessee. Asked by a passerby what he was doing, the Georgia head coach said, “Oh, just taking everything in.” Crean could have punctuated that line with “one last time,” but he didn’t. Whether he knew it then or not, all indications are that was the last Georgi…