ANKARA   Chinese coast guard ships fired water cannons at two Philippine vessels Tuesday near a disputed shoal in the South China Sea, causing damage to both. Beijing said the vessels “illegally intruded” in waters off Huangyan Dao, also known as Scarborough Shoal. The Chinese vessels “harassed, blocked, water cannoned and rammed vessels” of the Philippine Coast Guard (PCG) and the Bureau of Fisheries and Aquatic Resources that were enroute to Scarborough Shoal, which the Philippines refers to