SANTA CLARITA, Calif. — It appears as if almost anything might be possible in “Utopia.” Whether its ensuring participants can legally hunt, readying for wildfires or accounting for an impending pregnancy, the masterminds behind the new Fox unscripted society-building series have prepared for every possible situation at the rural compound where they’re filming “Utopia.” Except for one: What if nobody watches? That’s not a scenario the creators of this human ant farm even …