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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//>>built
define(["../_base/declare","../dom-class","./Source"],function(a,b,c){return a("dojo.dnd.Target",c,{constructor:function(){this.isSource=!1;b.remove(this.node,"dojoDndSource")}})});