Compare elo between enabling/disabling transposition table on training

[nodchip]

It is believed that Setting EnableTranspositionTable to false improves elo. We will documentize it. Before we change documentations, we need the following experiments:

1. Generate training data.
2. Train a net with 1., and EnableTranspositionTable = true.
3. Train a net with 1., and EnableTranspositionTable = false.
4. Compare the elo between 2. and 3.

Any helps are welcome.