Avery scene

• Added the scene Avery School Drop Off. Written by meowmaid and Bette, coded by LupusXLass1404.
• Add a new variable $averySeen. Currently, "meetPark", "meetStreet", "meetCafe" are recorded. Players who have already init Avery may not be able to get these value, there doesn't seem to be a variable that can confirm where the player first interacted with Avery.
  • Note: The variable $averyseen already exists in the game, it's just a matter of the case difference.
• Add a new variable $averyRejected. Used to track the events and number of times the player rejects Avery.