The Los Angeles Chargers wasted no time after the NFL draft, diving right into undrafted free agency .  Chargers general manager Joe Hortiz and the front office threw big cash at multiple undrafted free agents at positions of need. Unlike most of the NFL, the team went ahead and announced the 18-player undrafted class just a few hours after the draft itself, too.  As in the past with names like Marlowe Wax and others, the Jim Harbaugh era has been very good to Chargers undrafted free agents. This year shouldn’t be any different, with one or two capable of breaking through to the final 53-man roster.  Here are a few final-roster undrafted free agents to keep in mind.  NFL UDFA with best shot to make final 53-man roster for Chargers Lander Barton, LB, Utah  Lander Barton | Rob Gray-Imagn Images The Chargers turned some heads when they didn’t use one of their eight picks on linebacker.…