>> This Friday, Artomatic – a conglomerate of visual art, live music, poetry readings, films and more – opens at 800 Third St. NE. The opening reception kicks off at noon this Friday and lasts until 1 a.m. It’s up through Dec. 5. >> Also new this week is “Cuban Artists: Three Generations” at the Fraser Gallery in Bethesda. Stop by on Friday from 6-9 p.m. to sip mojitos (or sangria) while viewing new work…