message: gltfpack: Save skin names
diff: @@ -1179,6 +1179,12 @@ void writeSkin(std::string& json, const cgltf_skin& skin, size_t matrix_accr, co
  {
  comma(json);
  append(json, "{");
  + if (skin.name && *skin.name)
  + {
  + append(json, "\"name\":\"");
  + append(json, skin.name);
  + append(json, "\",");
  + }
  append(json, "\"joints\":[");
  for (size_t j = 0; j < skin.joints_count; ++j)
  {
  