Add support for UCI in gameClient.move()

[baroxyton]

UCI engines such as Stockfish use a special move syntax. See here: https://en.wikipedia.org/wiki/Universal_Chess_Interface#Design

This would be very nice, as you could directly use this in conjunction with an engine which would enable you to analyze and such

[baroxyton]

In case it helps I implemented this is a fork, but unfortunately I haven't gotten move validation working