By Rusty Marks Multi-Fest, Charleston's annual multicultural festival, is moving to Haddad Riverfront Park after 25 years on the State Capitol grounds.Dallas Staples, former Charleston police chief and president of the Multi-Fest board of directors, said the move downtown will save event organizers money and allow them to put more money into hiring entertainment for the festival."We have to build a stage at the Capitol," Staples said.