Netflix shares hit an all-time high on Friday, buoyed by investor optimism that its robust content lineup will help the streaming giant maintain upbeat subscriber growth even as the boost from its password-sharing crackdown wanes.The company, widely seen as the winner of Hollywood’s streaming wars, saw its stock rise nearly 10% to $754.90 and was set to add more than $28 billion to its market value of about $295 billion, if gains hold.It topped estimates for quarterly subscriber additions by more than 1 mil ...