Just a few blocks from the swooping Barclays Center arena in downtown Brooklyn sits an unexpectedly quiet haven, a petite 1,300-square-foot patch of green punctuated by a small outbuilding. This modest structure, a single room with just enough space for an army cot or chair, was designed and built by architect Nicholas Hunt, who runs the studio Hunt Architecture with his brother, Andrew, in addition to working for larger firms.  All the "Right" Angles from Studios for Working and Playing