This was supposed to be Glenn Close’s year. After more than three decades as an actress, with some 40 films to her credit, the 64-year-old entertainer, who has never won an Academy Award, was expected to be a heavy favorite come Oscar time. That’s because her latest film has her playing a man - or at least a woman living as a man - and the only thing Hollywood likes to reward more than that is men playing men. But with Oscar nominations now just days away (they will be announced Tuesday morning), Close is no sure bet to grab a best actress nod for “Albert Nobbs,’’ the genteel period drama that opens in the Boston area on Friday.