changement du scene manager, amélioration du cockpit et autres

* refonte du scene manager
* refonte du audio manager
* premier rework des plantes
* nettoyage des dossiers/fichiers
* renommage de planète en region
* fix des run

entities/plants/scripts/texture_builder/texture_builder.gd

@@ -0,0 +1,19 @@
+extends Resource
+class_name TextureBuilder
+
+const PLACEHOLDER_SEED_TEXTURE : Texture = preload("res://entities/plants/assets/sprites/default/seed.png")
+const PLACEHOLDER_MATURE_TEXTURE : Texture = preload("res://entities/plants/assets/sprites/default/mature.png")
+const PLACEHOLDER_GROWING_TEXTURE : Texture = preload("res://entities/plants/assets/sprites/default/growing.png")
+
+
+func build_seed_texture(_random_seed : int) -> Texture: 
+    return PLACEHOLDER_SEED_TEXTURE
+
+func build_plant_texture(plant_data : PlantData) -> Texture: 
+    match plant_data.get_state():
+        PlantData.State.MATURE:
+            return PLACEHOLDER_MATURE_TEXTURE
+        PlantData.State.GROWING:
+            return PLACEHOLDER_GROWING_TEXTURE
+        _:
+            return null