新增右键菜单部件，但测试发现sdk还有问题

jxdnsong

2020-10-24 650acd89dcfc13c9dd051dd2ab29845c748df9d3

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<div dojoAttachPoint="outerNode" class="imageGalleryWrapper">
    <div dojoAttachPoint="thumbPickerNode"></div>
    <div dojoAttachPoint="slideShowNode"></div>
</div>