Compare with Minigo

[Minigo] sounds promising. Maybe it has all the features I need for the Shibumi games project, and I don't need to build my own. It was based on [MuGo], so that might also be useful.

[Minigo]: https://github.com/tensorflow/minigo
[MuGo]: https://github.com/brilee/MuGo

Start by reviewing the linked Minigo and MuGo projects and compare their features with the needs of the Shibumi games project. No repository files or tests are named; done would require a documented decision about whether an existing project meets those needs or whether zero-play must build its own support.

Written by the indexing model from the issue text.