What better time than the day after the State of the Union address to be reminded that exaggeration, obfuscation, and just-plain-making-shit-up can be employed for benign purposes as well as sinister ones? Solas Nua’s Trad is a show that delights in benevolent hyperbole like no other in recent memory, and its pleasures are plentiful indeed. Playwright Mark Doherty’s wry, spry meditation on tradition and familial identity and especially — O! How we we wish…