Refactor all list commands to share the same code

[chmouel]

A lot of the *list commands are just copy and paste between each others, it
would be nice we can refactor all of them to use the same code.

and at the same time as mentionned in #681 add listing with -o name to
ClusterTasks.list and Conditions.list.

[chmouel]

/kind cleanup

[pradeepitm12]

/assign

[tekton-robot]

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[tekton-robot]

@tekton-robot: Closing this issue.

In response to this:

Rotten issues close after 30d of inactivity.
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Mark the issue as fresh with /remove-lifecycle rotten.

/close

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