tutorial checkpointing

[WilsonCWu]

added a framework to checkpoint tutorials usecase: every time the start button is hit ingame, the tutorial should be checkpointed so if the game is restarted midtutorial, the tutorial wontt startt at the beginning when you're already onthe next dungeon level

@Daniel-Wang not too familiar with tutorial flows, let me know if you would need something else too, to persist tutorial state

[Daniel-Wang]

so far can't think of anything, will lyk if anything comes up