message: Fixed loadNode function memory leak bug.
diff: @@ -906,6 +906,7 @@ void vkglTF::Model::loadNode(vkglTF::Node *parent, const tinygltf::Node &node, u
  for (size_t index = 0; index < accessor.count; index++) {
  indexBuffer.push_back(buf[index] + vertexStart);
  }
  + delete[] buf;
  break;
  }
  case TINYGLTF_PARAMETER_TYPE_UNSIGNED_SHORT: {
  @@ -914,6 +915,7 @@ void vkglTF::Model::loadNode(vkglTF::Node *parent, const tinygltf::Node &node, u
  for (size_t index = 0; index < accessor.count; index++) {
  indexBuffer.push_back(buf[index] + vertexStart);
  }
  + delete[] buf;
  break;
  }
  case TINYGLTF_PARAMETER_TYPE_UNSIGNED_BYTE: {
  @@ -922,6 +924,7 @@ void vkglTF::Model::loadNode(vkglTF::Node *parent, const tinygltf::Node &node, u
  for (size_t index = 0; index < accessor.count; index++) {
  indexBuffer.push_back(buf[index] + vertexStart);
  }
  + delete[] buf;
  break;
  }
  default:
  