Create persistence manager and connectors for chests and gates

Entities/Map Objects/Chests/Scripts/item_chest_01.gd

@@ -27,6 +27,11 @@ func OpenAlreadyOpened() -> void:
 		already_opened_message_dialogue_trigger.Trigger()
 
 
+func SetOpenedFromLoad() -> void:
+	super.SetOpenedFromLoad()
+	chest_01_sprite.play("opened")
+
+
 # Private Methods
 func _ready() -> void:
 	if is_open: