LAS VEGAS — UCLA broke out new uniforms that looked like pajamas and played like they were barely awake well into the second half. Freshman Shabazz Muhammad snapped the Bruins out of it, saving them from an inglorious exit from the Pac-12 tournament. Muhammad scored 12 of his 16 points in the second half, Travis Wear hit a jumper with 11 seconds left and No. 21 UCLA rallied from a 15-point deficit to beat Arizona State 80-75 in the quarterfinals of the Pac-12 tournament on Thursday. “These guys never quit. They never gave up,” UCLA coach Ben Howland said. “They …