Align node counting with other engines

[jhonnold]

Bench: 2811728

Node counting now aligns with MakeMove calls. Tested due to node count impacts with TM. NMP counts done after testing, but should have minimal impact.

Elo   | -0.27 +- 0.58 (95%)
SPRT  | 10.0+0.10s Threads=1 Hash=8MB
LLR   | 2.89 (-2.25, 2.89) [-2.00, 0.00]
Games | N: 362600 W: 87809 L: 88088 D: 186703
Penta | [1210, 43501, 92126, 43284, 1179]
http://chess.grantnet.us/test/39593/

Elo   | 0.38 +- 1.06 (95%)
SPRT  | 60.0+0.60s Threads=1 Hash=64MB
LLR   | 2.89 (-2.25, 2.89) [-2.00, 0.00]
Games | N: 97686 W: 22760 L: 22652 D: 52274
Penta | [59, 11303, 26025, 11383, 73]
http://chess.grantnet.us/test/39606/