我目前在我的angular 4应用程序中使用下面的kendo网格组件列表。我将来是否需要任何许可证？如果下面的内容是开源的，请告诉我。
npm install --save @ progress / kendo-angular-grid @ progress / kendo-angular-dropdowns @ progress / kendo-angular-inputs @ progress / kendo-angular-dateinputs @ progress / kendo-data-query @progress / kendo-angular-intl @ progress / kendo-angular-l10n @ progress / kendo-drawing @ progress / kendo-angular-excel-export @ angular / animations