In the early days of the Academy’s animated feature Oscar, there were questions as to whether enough films would qualify each year for the award to be given. Not anymore! This year sees a record number of contenders across a wide variety of genres, styles and audiences, from serious, adult-targeted films (like “Charlotte” and “Eternal Spring”) to boffo offerings from Hollywood’s top toon studios — and that doesn’t even count such anime franchise sensations as “One Piece Film: Red” and “Jujutsu Kaisen 0,” which didn’t submit but further illustrate the vitality of the form. Apollo 10½: A Space Age Childhood...