* DEV-1761: Clean up Ruleset interface (#115)
* remove legacy ruleset types and simplify ruleset interface
* remove unnecessary settings argument from Ruleset interface
* decouple rules.Settings from client API and store settings as strings
* DEV 1761: Add new BoardState and Point fields (#117)
* add Point.TTL, Point.Value, GameState and PointState to BoardState
* allow maps to access BoardState.GameState,PointState
* add PreUpdateBoard and refactor snail_mode with it
* fix bug where an extra turn was printed to the console
* fix formatting
* fix lint errors
Co-authored-by: JonathanArns <jonathan.arns@googlemail.com>
* Separated out rivers and bridges into its own file with three map variants
* fixing tags
* removed extra 4 starting positions from the medium map since it only supports 8 players
* update GetUnoccupiedPoints to consider hazards with a flag
* use new utility method to fine unoccupied points and enforce map sizes
* changed up casting to make IsAllowable() more usable
