NEW YORK — Welcome to the ‘60s. For the highly fashionable “The Marvelous Mrs. Maisel,” the calendar shift into the new decade doesn’t just represent new dresses and hats, but also a renewed sense of self as the feminist moment kicks off. For the “Maisel” women, though, they were already on their way. “(Rose) is willing to shed a lot of what she needed to be, and I would say it’s no accident that the decade is shifting, too,” Marin Hinkle, who plays Midge’s mother, Rose Weissman, told the Daily News. “They started to change my color scheme into the bolder set, they started to add new shapes, p…