STEWART AIRPORT — Anthony Mancinelli, a World War II veteran who’s still a practicing barber at the age of 108, will be among the passengers as Hudson Valley Honor Flight makes its 22nd trip to Washington, D.C., on Saturday.He’ll be joined by 13 of his fellow World War II veterans; others who served in Korea, Vietnam and Operation Desert Storm; and still others who served in peacetime between World War II and Korea, and Korea and Vietnam.