The 150 students making up the inaugural class of a new liberal arts college opened by the National University of Singapore and Yale University have traveled to Yale’s main campus in New Haven, Connecticut, to attend orientation, which began last week and ends in early August. They will return to Singapore next month to begin classes. Connect With Us on Twitter Follow @nytimesworld for international breaking news and headlines. Twitter List: Reporters and Editors Yale-N.U.S. College’s…