The two rap veterans will be bringing their unique styles to the city’s premier hip hop festival.   The full lineup for this year’s Hopscotch Festival in Halifax is out, and the weekend is being headlined by two hip hop powerhouses with distinct and unique voices. Detroit rapper Danny Brown and East Coast hip hop veteran Jadakiss will headline the festival over its two-day run, with Brown performing at the Light House Arts Centre on Friday, Oct. 18 and Jadakiss taking the stage Saturday, Oct. 19…