Automatic Resign Rate Adjustment

[gonzalezjo]

Resign rates for the project currently require a script and human effort in order to be calculated. This is potentially problematic, because it (1) differs from DeepMind's setup, (2) can produce too many false-positive resigns and throw off the value head, and (3) allows those that do not have the script to properly adjust resign rates.

Although I've heard that resign rate calculation is incompatible with TB rescoring, for those using the server code as a base for similar projects that are not using rescoring, this would be a very useful feature.