Photos: Johan Doornenbal SAN FRANCISCO — Arriving straight from SXSW with lots of  well-deserved hype, Vagabon outshined her headliner at Rickshaw Stop Thursday night. Cameroon-born producer and musician Lætitia Tamko, who plays under the moniker Vagabon, played nearly all of the songs off her debut, Infinite Worlds, some with just a guitar and synthpads.…