Rename DualConnectivityBuilder and MedianDualMeshBuilder's files

DualConnectivityBuilder.[hc]pp -> MedianDualConnectivityBuilder.[hc]pp DualMeshBuilder.[hc]pp -> MedianDualMeshBuilder.[hc]pp

src/mesh/DiamondDualMeshBuilder.cpp

@@ -53,8 +53,10 @@ DiamondDualMeshBuilder::DiamondDualMeshBuilder(const IMesh& i_mesh)
     this->_buildDualDiamondMeshFrom<3>(i_mesh);
     break;
   }
+    // LCOV_EXCL_START
   default: {
     throw UnexpectedError("invalid mesh dimension: " + std::to_string(i_mesh.dimension()));
   }
+    // LCOV_EXCL_STOP
   }
 }