Uci

[Matthies]

Improves UCI output:

• Don't repeat output of low depth tt moves
• Avoid output of '0 nps'

  
  ELO   | 3.13 +- 4.61 (95%)
  SPRT  | 10.0+0.10s Threads=1 Hash=8MB
  LLR   | 2.95 (-2.94, 2.94) [-4.00, 1.00]
  GAMES | N: 11216 W: 2944 L: 2843 D: 5429```