Add tkn approvaltask 😻

[PuneetPunamiya]

This patch bootstraps CLI and adds implementation of List Command

• List all the approval task in the default namespace
  • If flag provided the list the approval task in that particular namespace
• Flags
  • -A, –all-namespace → To list approvaltask from all namespaces
• Global Flags
  • –namespace → namespace to use
• UX

tkn approvaltask list
tkn at ls

Output

NAME   NumberOfApprovalsRequired   PendingApprovals   Rejected   STATUS
cr-1   2                           2                  0          Pending
cr-2   2                           0                  1          Rejected
cr-3   2                           0                  0          Approved

[PuneetPunamiya]

/hold

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: PuneetPunamiya

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• OWNERS [PuneetPunamiya]

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[PuneetPunamiya]

/hold cancel

[piyush-garg]

This table makes not much sense for me. Too much information repeated. We can go for something like

NAME    Approvals    STATUS
foo     2/3          Wait
bar     4/4          Approved

[piyush-garg]

As we are supporting only single reject, showing a column does not make any sense

[koustavsaha]

@piyush-garg I am fine with it as long as its clear that in the example of 0/3 and status as "rejected" someone from the approval list has rejected it.

[piyush-garg]

this should be yellow/orange :D

[piyush-garg]

/lgtm