By John StatonPrince may not be playing, but the Azalea Festival is still going to party like it’s 1999.Two bands that made their names during the decade of alternative rock and grunge – power pop act The Goo Goo Dolls and rockers Collective Soul – were announced Friday as headliners of the 63rd N.C. Azalea Festival.The bands will play a concert April 8 at Trask Coliseum on the campus of the University of North Carolina Wilmington.The Goo Goo Dolls and Collective Soul join country duo Montgomery Gentry as festival headliners. Montgomery Gentry plays Trask April 9.“This is a little different ge