[nad-viewer] create style and footer for legends generated from metadata#436

CBiasuzzi wants to merge 2 commits into

mainpowsybl/powsybl-network-viewer:mainfrom

fix_nad_legend_creation_from_meta_style_footerpowsybl/powsybl-network-viewer:fix_nad_legend_creation_from_meta_style_footerCopy head branch name to clipboard