The Army baseball team’s best crowd this season likely will attend a game that won’t count in the standings. But when the New York Yankees come to West Point  — the first pro team to do so since the Houston Astros in 1986 — the March 30 game against the Black Knights (0-2 so far this year) will be so big, temporary bleachers will be hauled in to boost Johnson Stadium at Doubleday Field’s capacity from 824 to more than 5,000 fans, according to an Army athletic department release. Tickets will cost $40 to $50. They go on sale March…