simplify parsing of equilibrium data

}

void TestConfigReader::equilibrium(const yaml_event_t & event) {

    std::string vals = (char *)event.data.scalar.value;

    std::stringstream data((char *)event.data.scalar.value);

    config.equilibrium.clear();

    std::size_t found = vals.find_first_of(" \t");

    while (found != std::string::npos) {

        double value = atof(vals.substr(0,found).c_str());

    double value;

    while (1) {

        data >> value;

        if (data.eof()) break;

        config.equilibrium.push_back(value);

        vals = vals.substr(found+1);

        found = vals.find_first_of(" \t");

    }

}