터치패드와 마우스 휠 방향을 따로 reverse 할 수 있는 앱
https://pilotmoon.com/scrollreverser/
http://bischoff.tistory.com/275
https://godoftyping.wordpress.com/2018/04/10/mac-%EB%A7%A5%EC%97%90%EC%84%9C-%EB%A7%88%EC%9A%B0%EC%8A%A4-%EB%92%A4%EB%A1%9C-%EA%B0%80%EA%B8%B0-%EC%95%9E%EC%9C%BC%EB%A1%9C-%EA%B0%80%EA%B8%B0/