v2 https://github.com/qiaoxun/vue-formbuilder https://qiaoxun.github.io/vue-formbuilder/
v1 https://github.com/jmeei/vue-formbuilder
ref - https://vuejsexamples.com/form-builder-with-vue-js/
origin - https://www.pipiscrew.com/?p=16269 form-builder-with-vue-js