Allow rules to manage Scarpet apps (Scarpet Rules) (#519)

by altrisi

docs/scarpet/api/Auxiliary.md

@@ -469,6 +469,7 @@ Available options in the scarpet app space:
   * `world_seed` - a numeric seed of the world
   * `world_path` - full path to the world saves folder
   * `world_folder` - name of the direct folder in the saves that holds world files
+  * `world_carpet_rules` - returns all Carpet rules in a map form (`rule`->`value`). Includes rules from extensions with their namespace (`namespace:rule`->`value`). You can later listen to rule changes with the `on_carpet_rule_change(rule, newValue)` event.
  
  Relevant gameplay related properties
   * `game_difficulty` - current difficulty of the game: `'peacefu'`, `'easy'`, `'normal'`, or `'hard'`