IndyCar’s upcoming “100 Days to Indy” isn’t headed to a streaming giant like the one that turned Formula 1 into a U.S. ratings star with the pioneering docuseries “Drive To Survive,” but I wouldn’t paint 100 Days’ destination at The CW and VICE TV as a strategical error. It’s actually an ambitious play. Granted, it might not make a lot of sense to IndyCar’s older fans — the ones that also double as the series’ largest percentage of followers — who’ve never spent time on either channel. And yet, the youth-centric alignment with The CW is everything IndyCar needs to…