Add life rules and implement tests for civilization and life states

- Introduced a new file `life_rules.txt` to define life progression and degradation rules.
- Created `test_civilization_state.gd` to validate the functionality of civilization rules and ethics.
- Added `test_life.gd` to test life evolution, including initialization, batch processing, and state validation.
- Implemented `civilization_state.gd` to manage civilization ethics and space civilization detachment logic.
- Ensured all tests check for expected outcomes and validate state integrity after operations.

autoload/global.gd

@@ -19,6 +19,8 @@ var Locale = "en"
 var OwniverseEntities: Dictionary = {}
 var OwniverseItems: Dictionary = {}
 var Templates: Dictionary = {}
+var LifeRules: Dictionary = {}
+var CivilizationRules: Dictionary = {}
 
 var batch_count: float = 40.0 # must be even not odd
 
@@ -67,6 +69,11 @@ func format_number(value: float, digits: int = 0) -> String:
 
 
 func _ready() -> void:
+    for row: Dictionary in _read_from_csv("res://data/civilization_rules.txt").values():
+        if not CivilizationRules.has(row.stage):
+            CivilizationRules[row.stage] = {"home": row.home, "span": float(row.span), "stars": float(row.stars), "ethics": {}}
+        CivilizationRules[row.stage].ethics[row.ethic] = row
+    LifeRules = _read_from_csv("res://data/life_rules.txt")
     OwniverseEntities = _read_from_csv("res://data/owniverse_entities.txt")
     OwniverseItems = _read_from_csv("res://data/owniverse_items.txt")