Charter Communications Inc. is close to an agreement to buy Time Warner Cable — the second-largest cable and Internet service company in the nation and parent of Hawaii’s Oceanic Time Warner Cable — for $55.1 billion in cash and stock. Charter Communications (Nasdaq: CHTR), the nation’s fourth-largest cable company, is offering $195 per share, which is 14 percent higher than Friday’s closing price for Time Warner (NYSE: TWC), Bloomberg and other media outlets reported Monday, citing sources…