This will be called from the Initialise class, making the game state ready to be
played- create player instances, board, tiles, cards etc

This avoid the ugly hack of keeping a referenec in GameState

Intention is the game hands control to AI player after human ends turn by
calling this method

Can use this on AI turns etc to send messages back to frontend

Generated using
https://www.toptal.com/developers/gitignore/api/sbt,playframework

and also ignored the game sprites / other UI images