Add an optional arg to yarn cluster -list-node-labels to list nodes collection partitioned by labels

Since we have "yarn cluster -lnl" to print all nodelabels info .But it's not enough,we should be abale to list nodes collection partitioned by labels,especially in large cluster.

So  I propose to add an optional argument  "-nodes" for  "yarn cluster -lnl" to achieve this.

e.g.

[yarn@docker1 ~]$ yarn cluster -lnl -nodes
Node Labels Num: 3
              Labels                                               Nodes
<tensorflow:exclusivity=true>           docker1:45454, docker5:45454
<spark:exclusivity=true>                   docker2:45454
<impala:exclusivity=true>                 docker3:45454