Refactor TestView
delete useless code in Connector.
Finish BookingView
Merge branch 'Refactor' of https://github.com/Study-Master/Client into Refactor

Conflicts:

examinee/src/main/java/studymaster/examinee/ViewController/BookingView.j
ava

examinee/src/main/java/studymaster/examinee/ViewController/CourseView.ja
va