So far, it sure feels like the Los Angeles Chargers have one of the most well-reviewed undrafted free-agent classes in the entire NFL.  Granted, some teams haven’t even made their undrafted classes official yet. The Chargers, on other hand, wasted all of zero time announcing an 18-player college free agent class , putting an early end to the rumor mill.  There’s a lot to like. There’s big hype around one undrafted free agent the Chargers threw a big contract at. A handful of the college free agents have a shot at the final roster, too.  But one post-draft signing who fell out of the draft, more than any other for the Chargers, continues to earn national attention.  And it’s sort of a sign of where things might be going for both the player and team.  One NFL undrafted free agent makes headlines for Chargers  Lander Barton | Rob Gray-Imagn Images The hyped undrafted free agent for the Chargers?  Try Utah linebacker Lander Barton.…