Added ftui_snippet_tester
Added ftui_snippet_tester

roman1528/fhem-tablet-ui,roman1528/fhem-tablet-ui,knowthelist/fhem-tablet-ui,knowthelist/fhem-tablet-ui,viegener/fhem-tablet-ui,viegener/fhem-tablet-ui,viegener/fhem-tablet-ui,knowthelist/fhem-tablet-ui,roman1528/fhem-tablet-ui,viegener/fhem-tablet-ui,roman1528/fhem-tablet-ui,knowthelist/fhem-tablet-ui,knowthelist/fhem-tablet-ui