clean up code

[lily-haas]

add headers to scripts for oars to make assigning objects in the inspector easier

[lily-haas]

try to make a nicer scene loading script- will make putting everything together a lot easier at the end

[lily-haas]

https://medium.com/geekculture/loading-scenes-in-unity-98e446756497#:~:text=Select%20File%20%3E%20Build%20Settings%20or,to%20load%20our%20Scenes%20from.

Might be a good resource

[lily-haas]

Code is well commented with suggestions for improvements to reduce repeated code and make assignment through the editor easier