Function throw_attribute_not_found_exception

src/IO/PLYParser.cpp:16–21

namespace PLYParserHelper {
    void throw_attribute_not_found_exception(
            const std::string& name) {
        std::stringstream err_msg;
        err_msg << "Attribute " << name << " does not exist";
        throw RuntimeError(err_msg.str());
    }

    void assert_success(bool val) {
        if (!val) {