started work on save structures and data validation

scripts/playlist_generator.gd

@@ -2,6 +2,7 @@
 extends Node
 
 @export var generate_playlist_now = false
+@export var checksum_test = false
 @export var load_playlist_from_file = false
 @export var maps_in_rotation : Array[String] = []
 @export var gamemodes_in_rotation : Array[gamemode]= []
@@ -20,7 +21,7 @@ func _process(delta: float) -> void:
 	
 	if load_playlist_from_file == true:
 		load_playlist()
-
+	
 
 func generate_playlist() -> void:
 	var playlist_name = only_valid_chars(GameGlobals.leaderboard_name)