An unhinged woman allegedly stormed into a Brooklyn restaurant and whacked a diner with a glass bottle before socking four others in a random attack Saturday afternoon, authorities said. Hilda Grullon, 44, allegedly launched her crazed attack when she busted into the Burrito Bar & Kitchen at 307 Flatbush Avenue in Prospect Heights around at 3:28 p.m. and bludgeoned a 63-year-old man with a glass bottle, according to the NYPD. The deranged suspect then barreled out of the Tex-Mex eatery and