Jazz Tangcay Artisans EditorThe proton pack from 1984’s “Ghostbusters” is back in “Ghostbusters: Afterlife.” Used in the original film by the team of paranormal sleuths played by Harold Ramis, Dan Aykroyd, Bill Murray and Ernie Hudson, the pack’s gun blasts a bright stream of light that sounds like a sizzling electric current followed by an explosion.That’s just one of the few aural easter eggs the film contains.Director Jason Reitman needed help on the teaser trailer for the new film, which