Three people were hospitalized after a brawl broke out on a party boat docked at a pier in Brooklyn. Two victims were stabbed and a third was hit in the head with a bottle. It happened just after 5 p.m. on the Cornucopia Majesty, which was docked at Pier 4 at the Brooklyn Army Terminal in Sunset Park. A 32-year-old man was stabbed in the torso, a 40-year-old man was stabbed several times in the chest and abdomen, and a 28-year-old man was hit in the head with a bottle, the NYPD told HNGN. Police responded to the scene in force after a 911 call. All three injured men were conscious and alert an…