* remove squad support and switch to using pipelines only in RulesBuilder
* remove spawn_food.standard from legacy ruleset definitions
* bugfix: Royale map generates Standard food
* add maps support to CLI
* add automated tests for all registered GameMap implementations
* update README
Refactor rulesets into smaller composable operations
In order to mix up the functionality from different rulesets like Solo, Royale, etc. the code in these classes needs to be broken up into small functions that can be composed in a pipeline to make a custom game mode.
* move snake API structs into a new client package
* add customizations to snake objects
* refactor and add support for passing snake customizations in games
