A homeless man is being sought for allegedly stabbing a convenience store employee in what police describe as an unprovoked attack earlier this month. Francisco Bonilla, 34, remains at large after the stabbing in Atlantic City on Feb. 3, according to police, who said he’s charged with attempted murder, aggravated assault and weapons offenses in connection to the attack. Bonilla is believed to be living in Atlantic City, police said Feb. 16. He entered a store in the 100 block of North Rhode Island Avenue around 8:18 a.m. and assaulted the employee, according to police. The worker, identified o…