A few years ago, cartoonist and writer Gabrielle Drolet developed a condition that made her unable to use her hands. It kept getting worse over time, and as Gabrielle searched for a diagnosis, she also had to find new ways to make art. She joined Tom Power to talk about her new memoir, “Look Ma, No Hands,” which tells the story of an artist coming to terms with disability, adapting to the unexpected, and ultimately learning to express herself again.