@Override
    public List<PluginData> listAllNotInResource() {
        return ListUtil.map(pluginMapper.listAllNotInResource(), PluginTransfer.INSTANCE::mapToData);
    }
query all plugin.

@return {@linkplain List}
shenyu-admin/src/main/java/org/apache/shenyu/admin/service/impl/PluginServiceImpl.java