message: correct voxelkey vectors
diff: @@ -186,7 +186,7 @@ class EsdfIntegrator {
  void pushNeighborsToOpen(const BlockIndex& block_index,
  const VoxelIndex& voxel_index) {
  - std::vector<VoxelKey, VoxelKey> neighbors;
  + std::vector<VoxelKey> neighbors;
  std::vector<float> distances;
  std::vector<Eigen::Vector3i, Eigen::aligned_allocator<Eigen::Vector3i>>
  directions;
  @@ -228,7 +228,7 @@ class EsdfIntegrator {
  esdf_layer_->getBlockPtrByIndex(kv.first);
  // See if you can update the neighbors.
  - std::vector<VoxelKey, VoxelKey> neighbors;
  + std::vector<VoxelKey> neighbors;
  std::vector<float> distances;
  std::vector<Eigen::Vector3i, Eigen::aligned_allocator<Eigen::Vector3i>>
  directions;
  @@ -303,7 +303,7 @@ class EsdfIntegrator {
  continue;
  }
  // See if you can update the neighbors.
  - std::vector<VoxelKey, VoxelKey> neighbors;
  + std::vector<VoxelKey> neighbors;
  std::vector<float> distances;
  std::vector<Eigen::Vector3i, Eigen::aligned_allocator<Eigen::Vector3i>>
  directions;
  