Up Unity version from 2020 to 2021

I have made by your requests:

Up Unity version from 2020 to 2021

+ All scenes now have "Scene settings"
+ Alien fantasy forest FPS is 60
+ Fix of Look at = "None"

School DLC update
+ Fix of error in the scene "Modular Research Center"

School DLC update
+ Fix of error in the scene "Night club"
+ Fix of error in the scene "Dance room 1"