While July 4th weekend revelers were enjoying barbecues, the beach and other holiday fun on Saturday, Capt. Jack Moran and his crew were working to stop a boat from sinking in Cape May Harbor. The 40-foot boat, wistfully named “Jersey Tomatoes” has been moored in the harbor and was slowly dropping into a watery grave. “We got calls, it was an hour from sinking,” said Moran, the owner of Sea Tow Cape May, a marine company that is like AAA for boaters. Cape May police and the U.S. Coast Guard had received calls from recreational boaters, parasailers and professional mariners, all reporting the v…