“Fast & Furious” actor Vin Diesel has been accused of sexual battery by a former assistant, who claimed she was promptly fired after the action star forced himself on her in 2010. Asta Jonasson detailed her allegations against 56-year-old Diesel in a lawsuit filed Thursday in Los Angeles. She said she was hired by Diesel’s production company, One Race Films, to work on location in Atlanta, where “Fast Five” had been in production, according to court documents obtained by Vanity Fair. A recent film school graduate at the time, Jonasson was tasked with things like organizing and accompanying Die…