Three people were slashed and another pepper-sprayed and bitten near Times Square overnight into Wednesday — both in the subway and out on the street, authorities said. The spate of unrelated attacks ended with a 26-year-old man slashed on his right arm as he stood on the 7 train platform at the Times Square subway hub about 3:45 a.m., cops said. The victim claimed the suspect had accosted him previously — and, once confronted, the stranger knifed him in return, according to police sources. The wounded man showed cops a photo of his attacker — and the suspect, identified as...