By Anne Kauranen HELSINKI (Reuters) – Finland’s Stora Enso is considering an investment of up to 1 billion euros ($1.13 billion) to produce more consumer packaging board as customers increasingly seek renewable materials over plastic, the forestry company said on Wednesday. It said customers such as food group Nestle or online fashion retailer Zalando are responding to consumer demands by replacing plastic with wood-based board in packaging. To meet the growing demand, Stora Enso is exploring the possibility of converting an idle paper machine at its Oulu site in Finland into a line to produce…